The Experts below are selected from a list of 16353 Experts worldwide ranked by ideXlab platform

Robert T Love - One of the best experts on this subject based on the ideXlab platform.

  • downlink Control Channel design for 3gpp lte
    Wireless Communications and Networking Conference, 2008
    Co-Authors: Robert T Love, Rapeepat Ratasuk, Amitava Ghosh, Brian K Classon, Ravi Kuchibhotla, Yufei W Blankenship
    Abstract:

    With the emergence of packet-based wireless broadband systems, work has begun on long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface including Control Channel is envisioned. This paper provides a preliminary look at an efficient downlink Control Channel design to reduce the overhead required to support data transmission. Initial performance results show that close to optimal system performance can be achieved with downlink Control overhead of less than 14%.

  • WCNC - Downlink Control Channel Design for 3GPP LTE
    2008 IEEE Wireless Communications and Networking Conference, 2008
    Co-Authors: Robert T Love, Rapeepat Ratasuk, Amitava Ghosh, Brian K Classon, Ravi Kuchibhotla, Yufei W Blankenship
    Abstract:

    With the emergence of packet-based wireless broadband systems, work has begun on long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface including Control Channel is envisioned. This paper provides a preliminary look at an efficient downlink Control Channel design to reduce the overhead required to support data transmission. Initial performance results show that close to optimal system performance can be achieved with downlink Control overhead of less than 14%.

  • uplink Control Channel design for 3gpp lte
    Personal Indoor and Mobile Radio Communications, 2007
    Co-Authors: Amitava Ghosh, Rapeepat Ratasuk, Weimin Xiao, Brian K Classon, Vijay Nangia, Robert T Love, Dale G Schwent, David R Wilson
    Abstract:

    Long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network is aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface is currently being specified in the 3GPP standards body. The Uplink (UL) for LTE is based on Single Carrier Frequency Division Multiple Access. The UL Control Channel carries non-data associated Control signaling like CQI, ACK/NACK, Scheduling request etc. To maintain the low PA power de-rating, the single carrier property of the UL has to be maintained. As such, special consideration should be given to the UL Control Channel design. This paper discusses in detail the LTE UL Control Channel design and its performance.

  • PIMRC - Uplink Control Channel Design for 3GPP LTE
    2007 IEEE 18th International Symposium on Personal Indoor and Mobile Radio Communications, 2007
    Co-Authors: Amitava Ghosh, Rapeepat Ratasuk, Weimin Xiao, Brian K Classon, Vijay Nangia, Robert T Love, Dale G Schwent, David R Wilson
    Abstract:

    Long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network is aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface is currently being specified in the 3GPP standards body. The Uplink (UL) for LTE is based on Single Carrier Frequency Division Multiple Access. The UL Control Channel carries non-data associated Control signaling like CQI, ACK/NACK, Scheduling request etc. To maintain the low PA power de-rating, the single carrier property of the UL has to be maintained. As such, special consideration should be given to the UL Control Channel design. This paper discusses in detail the LTE UL Control Channel design and its performance.

Amitava Ghosh - One of the best experts on this subject based on the ideXlab platform.

  • downlink Control Channel design for 3gpp lte
    Wireless Communications and Networking Conference, 2008
    Co-Authors: Robert T Love, Rapeepat Ratasuk, Amitava Ghosh, Brian K Classon, Ravi Kuchibhotla, Yufei W Blankenship
    Abstract:

    With the emergence of packet-based wireless broadband systems, work has begun on long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface including Control Channel is envisioned. This paper provides a preliminary look at an efficient downlink Control Channel design to reduce the overhead required to support data transmission. Initial performance results show that close to optimal system performance can be achieved with downlink Control overhead of less than 14%.

  • WCNC - Downlink Control Channel Design for 3GPP LTE
    2008 IEEE Wireless Communications and Networking Conference, 2008
    Co-Authors: Robert T Love, Rapeepat Ratasuk, Amitava Ghosh, Brian K Classon, Ravi Kuchibhotla, Yufei W Blankenship
    Abstract:

    With the emergence of packet-based wireless broadband systems, work has begun on long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface including Control Channel is envisioned. This paper provides a preliminary look at an efficient downlink Control Channel design to reduce the overhead required to support data transmission. Initial performance results show that close to optimal system performance can be achieved with downlink Control overhead of less than 14%.

  • uplink Control Channel design for 3gpp lte
    Personal Indoor and Mobile Radio Communications, 2007
    Co-Authors: Amitava Ghosh, Rapeepat Ratasuk, Weimin Xiao, Brian K Classon, Vijay Nangia, Robert T Love, Dale G Schwent, David R Wilson
    Abstract:

    Long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network is aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface is currently being specified in the 3GPP standards body. The Uplink (UL) for LTE is based on Single Carrier Frequency Division Multiple Access. The UL Control Channel carries non-data associated Control signaling like CQI, ACK/NACK, Scheduling request etc. To maintain the low PA power de-rating, the single carrier property of the UL has to be maintained. As such, special consideration should be given to the UL Control Channel design. This paper discusses in detail the LTE UL Control Channel design and its performance.

  • PIMRC - Uplink Control Channel Design for 3GPP LTE
    2007 IEEE 18th International Symposium on Personal Indoor and Mobile Radio Communications, 2007
    Co-Authors: Amitava Ghosh, Rapeepat Ratasuk, Weimin Xiao, Brian K Classon, Vijay Nangia, Robert T Love, Dale G Schwent, David R Wilson
    Abstract:

    Long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network is aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface is currently being specified in the 3GPP standards body. The Uplink (UL) for LTE is based on Single Carrier Frequency Division Multiple Access. The UL Control Channel carries non-data associated Control signaling like CQI, ACK/NACK, Scheduling request etc. To maintain the low PA power de-rating, the single carrier property of the UL has to be maintained. As such, special consideration should be given to the UL Control Channel design. This paper discusses in detail the LTE UL Control Channel design and its performance.

  • Power Control of the high speed shared Control Channel
    VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference 2005., 1
    Co-Authors: Rapeepat Ratasuk, Weimin Xiao, Amitava Ghosh, N. Whinnett, Fan Wang
    Abstract:

    In High Speed Downlink Packet Access (HSDPA) system, the High Speed Shared Control Channel (HS-SCCH) carries downlink signalling information essential to the operations of the high-speed mobile broadband access system. In this paper, power Control of the HS-SCCH is considered. Two algorithms - traditional power Control and Channel quality indicator (CQI) based power Control are analyzed. The traditional power Control algorithm couples the HS-SCCH transmit power to the power of the dedicated Control Channel and performs well when the mobile is not in soft-handoff. However, in soft-handoff HS-SCCH performance degrades significantly since power Control decisions are now based on the received powers of all base stations in soft-handoff rather than just from the HSDPA serving base station. On the other hand, CQI-based power Control decouples HS-SCCH power Control from that of the dedicated Control Channel and thus is not affected by mobile handoff state. However, CQI reports are infrequent, and, as a result, performance suffers when the reporting frequency is inadequate in tracking the propagation Channel. This is alleviated by using prediction to fill in gaps between CQI reports. Our simulation results show that performance of the CQI-based power Control algorithm is comparable to the traditional algorithm when the mobile is not in soft-handoff, and significantly better than the traditional algorithm under soft-handoff.

Rapeepat Ratasuk - One of the best experts on this subject based on the ideXlab platform.

  • downlink Control Channel design for 3gpp lte
    Wireless Communications and Networking Conference, 2008
    Co-Authors: Robert T Love, Rapeepat Ratasuk, Amitava Ghosh, Brian K Classon, Ravi Kuchibhotla, Yufei W Blankenship
    Abstract:

    With the emergence of packet-based wireless broadband systems, work has begun on long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface including Control Channel is envisioned. This paper provides a preliminary look at an efficient downlink Control Channel design to reduce the overhead required to support data transmission. Initial performance results show that close to optimal system performance can be achieved with downlink Control overhead of less than 14%.

  • WCNC - Downlink Control Channel Design for 3GPP LTE
    2008 IEEE Wireless Communications and Networking Conference, 2008
    Co-Authors: Robert T Love, Rapeepat Ratasuk, Amitava Ghosh, Brian K Classon, Ravi Kuchibhotla, Yufei W Blankenship
    Abstract:

    With the emergence of packet-based wireless broadband systems, work has begun on long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface including Control Channel is envisioned. This paper provides a preliminary look at an efficient downlink Control Channel design to reduce the overhead required to support data transmission. Initial performance results show that close to optimal system performance can be achieved with downlink Control overhead of less than 14%.

  • uplink Control Channel design for 3gpp lte
    Personal Indoor and Mobile Radio Communications, 2007
    Co-Authors: Amitava Ghosh, Rapeepat Ratasuk, Weimin Xiao, Brian K Classon, Vijay Nangia, Robert T Love, Dale G Schwent, David R Wilson
    Abstract:

    Long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network is aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface is currently being specified in the 3GPP standards body. The Uplink (UL) for LTE is based on Single Carrier Frequency Division Multiple Access. The UL Control Channel carries non-data associated Control signaling like CQI, ACK/NACK, Scheduling request etc. To maintain the low PA power de-rating, the single carrier property of the UL has to be maintained. As such, special consideration should be given to the UL Control Channel design. This paper discusses in detail the LTE UL Control Channel design and its performance.

  • PIMRC - Uplink Control Channel Design for 3GPP LTE
    2007 IEEE 18th International Symposium on Personal Indoor and Mobile Radio Communications, 2007
    Co-Authors: Amitava Ghosh, Rapeepat Ratasuk, Weimin Xiao, Brian K Classon, Vijay Nangia, Robert T Love, Dale G Schwent, David R Wilson
    Abstract:

    Long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network is aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface is currently being specified in the 3GPP standards body. The Uplink (UL) for LTE is based on Single Carrier Frequency Division Multiple Access. The UL Control Channel carries non-data associated Control signaling like CQI, ACK/NACK, Scheduling request etc. To maintain the low PA power de-rating, the single carrier property of the UL has to be maintained. As such, special consideration should be given to the UL Control Channel design. This paper discusses in detail the LTE UL Control Channel design and its performance.

  • Power Control of the high speed shared Control Channel
    VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference 2005., 1
    Co-Authors: Rapeepat Ratasuk, Weimin Xiao, Amitava Ghosh, N. Whinnett, Fan Wang
    Abstract:

    In High Speed Downlink Packet Access (HSDPA) system, the High Speed Shared Control Channel (HS-SCCH) carries downlink signalling information essential to the operations of the high-speed mobile broadband access system. In this paper, power Control of the HS-SCCH is considered. Two algorithms - traditional power Control and Channel quality indicator (CQI) based power Control are analyzed. The traditional power Control algorithm couples the HS-SCCH transmit power to the power of the dedicated Control Channel and performs well when the mobile is not in soft-handoff. However, in soft-handoff HS-SCCH performance degrades significantly since power Control decisions are now based on the received powers of all base stations in soft-handoff rather than just from the HSDPA serving base station. On the other hand, CQI-based power Control decouples HS-SCCH power Control from that of the dedicated Control Channel and thus is not affected by mobile handoff state. However, CQI reports are infrequent, and, as a result, performance suffers when the reporting frequency is inadequate in tracking the propagation Channel. This is alleviated by using prediction to fill in gaps between CQI reports. Our simulation results show that performance of the CQI-based power Control algorithm is comparable to the traditional algorithm when the mobile is not in soft-handoff, and significantly better than the traditional algorithm under soft-handoff.

Yufei W Blankenship - One of the best experts on this subject based on the ideXlab platform.

  • downlink Control Channel design for 3gpp lte
    Wireless Communications and Networking Conference, 2008
    Co-Authors: Robert T Love, Rapeepat Ratasuk, Amitava Ghosh, Brian K Classon, Ravi Kuchibhotla, Yufei W Blankenship
    Abstract:

    With the emergence of packet-based wireless broadband systems, work has begun on long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface including Control Channel is envisioned. This paper provides a preliminary look at an efficient downlink Control Channel design to reduce the overhead required to support data transmission. Initial performance results show that close to optimal system performance can be achieved with downlink Control overhead of less than 14%.

  • WCNC - Downlink Control Channel Design for 3GPP LTE
    2008 IEEE Wireless Communications and Networking Conference, 2008
    Co-Authors: Robert T Love, Rapeepat Ratasuk, Amitava Ghosh, Brian K Classon, Ravi Kuchibhotla, Yufei W Blankenship
    Abstract:

    With the emergence of packet-based wireless broadband systems, work has begun on long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface including Control Channel is envisioned. This paper provides a preliminary look at an efficient downlink Control Channel design to reduce the overhead required to support data transmission. Initial performance results show that close to optimal system performance can be achieved with downlink Control overhead of less than 14%.

Brian K Classon - One of the best experts on this subject based on the ideXlab platform.

  • downlink Control Channel design for 3gpp lte
    Wireless Communications and Networking Conference, 2008
    Co-Authors: Robert T Love, Rapeepat Ratasuk, Amitava Ghosh, Brian K Classon, Ravi Kuchibhotla, Yufei W Blankenship
    Abstract:

    With the emergence of packet-based wireless broadband systems, work has begun on long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface including Control Channel is envisioned. This paper provides a preliminary look at an efficient downlink Control Channel design to reduce the overhead required to support data transmission. Initial performance results show that close to optimal system performance can be achieved with downlink Control overhead of less than 14%.

  • WCNC - Downlink Control Channel Design for 3GPP LTE
    2008 IEEE Wireless Communications and Networking Conference, 2008
    Co-Authors: Robert T Love, Rapeepat Ratasuk, Amitava Ghosh, Brian K Classon, Ravi Kuchibhotla, Yufei W Blankenship
    Abstract:

    With the emergence of packet-based wireless broadband systems, work has begun on long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface including Control Channel is envisioned. This paper provides a preliminary look at an efficient downlink Control Channel design to reduce the overhead required to support data transmission. Initial performance results show that close to optimal system performance can be achieved with downlink Control overhead of less than 14%.

  • uplink Control Channel design for 3gpp lte
    Personal Indoor and Mobile Radio Communications, 2007
    Co-Authors: Amitava Ghosh, Rapeepat Ratasuk, Weimin Xiao, Brian K Classon, Vijay Nangia, Robert T Love, Dale G Schwent, David R Wilson
    Abstract:

    Long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network is aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface is currently being specified in the 3GPP standards body. The Uplink (UL) for LTE is based on Single Carrier Frequency Division Multiple Access. The UL Control Channel carries non-data associated Control signaling like CQI, ACK/NACK, Scheduling request etc. To maintain the low PA power de-rating, the single carrier property of the UL has to be maintained. As such, special consideration should be given to the UL Control Channel design. This paper discusses in detail the LTE UL Control Channel design and its performance.

  • PIMRC - Uplink Control Channel Design for 3GPP LTE
    2007 IEEE 18th International Symposium on Personal Indoor and Mobile Radio Communications, 2007
    Co-Authors: Amitava Ghosh, Rapeepat Ratasuk, Weimin Xiao, Brian K Classon, Vijay Nangia, Robert T Love, Dale G Schwent, David R Wilson
    Abstract:

    Long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network is aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface is currently being specified in the 3GPP standards body. The Uplink (UL) for LTE is based on Single Carrier Frequency Division Multiple Access. The UL Control Channel carries non-data associated Control signaling like CQI, ACK/NACK, Scheduling request etc. To maintain the low PA power de-rating, the single carrier property of the UL has to be maintained. As such, special consideration should be given to the UL Control Channel design. This paper discusses in detail the LTE UL Control Channel design and its performance.