The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform

V Gopal - One of the best experts on this subject based on the ideXlab platform.

  • a hybrid network Coding Technique for single hop wireless networks
    IEEE Journal on Selected Areas in Communications, 2009
    Co-Authors: Tuan Tran, Thinh Nguyen, B Bose, V Gopal
    Abstract:

    In this paper, we investigate a hybrid network Coding Technique to be used at a wireless base station (BS) or access point (AP) to increase the throughput efficiency of single-hop wireless networks. Traditionally, to provide reliability, lost packets from different flows (applications) are retransmitted separately, leading to inefficient use of wireless bandwidth. Using the proposed hybrid network Coding approach, the BS encodes these lost packets, possibly from different flows together before broadcasting them to all wireless users. In this way, multiple wireless receivers can recover their lost packets simultaneously with a single transmission from the BS. Furthermore, simulations and theoretical analysis showed that when used in conjunction with an appropriate channel Coding Technique under typical channel conditions, this approach can increase the throughput efficiency up to 3.5 times over the automatic repeat request (ARQ), and up to 1.5 times over the HARQ Techniques.

Tuan Tran - One of the best experts on this subject based on the ideXlab platform.

  • a hybrid network Coding Technique for single hop wireless networks
    IEEE Journal on Selected Areas in Communications, 2009
    Co-Authors: Tuan Tran, Thinh Nguyen, B Bose, V Gopal
    Abstract:

    In this paper, we investigate a hybrid network Coding Technique to be used at a wireless base station (BS) or access point (AP) to increase the throughput efficiency of single-hop wireless networks. Traditionally, to provide reliability, lost packets from different flows (applications) are retransmitted separately, leading to inefficient use of wireless bandwidth. Using the proposed hybrid network Coding approach, the BS encodes these lost packets, possibly from different flows together before broadcasting them to all wireless users. In this way, multiple wireless receivers can recover their lost packets simultaneously with a single transmission from the BS. Furthermore, simulations and theoretical analysis showed that when used in conjunction with an appropriate channel Coding Technique under typical channel conditions, this approach can increase the throughput efficiency up to 3.5 times over the automatic repeat request (ARQ), and up to 1.5 times over the HARQ Techniques.

  • a joint network channel Coding Technique for single hop wireless networks
    2008 Fourth Workshop on Network Coding Theory and Applications, 2008
    Co-Authors: Tuan Tran, Thinh Nguyen, B Bose
    Abstract:

    Reliable transmission over an error-prone channel is typically accomplished via channel Coding or retransmission of the lost information. In this paper, we investigate a joint network-channel Coding Technique to increase the bandwidth efficiency of wireless networks. In particular, we show that the proposed joint network-channel Coding approach which combines the recent network Coding (NC) concept with the traditional forward error correction (FEC) Technique, can increase the bandwidth efficiency in single-hop wireless networks such as WLAN or WiMAX networks. We present some analytical results on the bandwidth efficiency for both broadcast and unicast scenarios. Based on these theoretical results, we provide a heuristic algorithm that dynamically selects the optimal level of FEC to be used with network Coding Technique for given channel conditions. For typical channel characteristics, both simulations and theoretical results confirm that the proposed joint network channel Coding approach can reduce the bandwidth usage up to five times over the automatic repeat request (ARQ) Technique and up to two times over the HARQ Technique.

B Bose - One of the best experts on this subject based on the ideXlab platform.

  • a hybrid network Coding Technique for single hop wireless networks
    IEEE Journal on Selected Areas in Communications, 2009
    Co-Authors: Tuan Tran, Thinh Nguyen, B Bose, V Gopal
    Abstract:

    In this paper, we investigate a hybrid network Coding Technique to be used at a wireless base station (BS) or access point (AP) to increase the throughput efficiency of single-hop wireless networks. Traditionally, to provide reliability, lost packets from different flows (applications) are retransmitted separately, leading to inefficient use of wireless bandwidth. Using the proposed hybrid network Coding approach, the BS encodes these lost packets, possibly from different flows together before broadcasting them to all wireless users. In this way, multiple wireless receivers can recover their lost packets simultaneously with a single transmission from the BS. Furthermore, simulations and theoretical analysis showed that when used in conjunction with an appropriate channel Coding Technique under typical channel conditions, this approach can increase the throughput efficiency up to 3.5 times over the automatic repeat request (ARQ), and up to 1.5 times over the HARQ Techniques.

  • a joint network channel Coding Technique for single hop wireless networks
    2008 Fourth Workshop on Network Coding Theory and Applications, 2008
    Co-Authors: Tuan Tran, Thinh Nguyen, B Bose
    Abstract:

    Reliable transmission over an error-prone channel is typically accomplished via channel Coding or retransmission of the lost information. In this paper, we investigate a joint network-channel Coding Technique to increase the bandwidth efficiency of wireless networks. In particular, we show that the proposed joint network-channel Coding approach which combines the recent network Coding (NC) concept with the traditional forward error correction (FEC) Technique, can increase the bandwidth efficiency in single-hop wireless networks such as WLAN or WiMAX networks. We present some analytical results on the bandwidth efficiency for both broadcast and unicast scenarios. Based on these theoretical results, we provide a heuristic algorithm that dynamically selects the optimal level of FEC to be used with network Coding Technique for given channel conditions. For typical channel characteristics, both simulations and theoretical results confirm that the proposed joint network channel Coding approach can reduce the bandwidth usage up to five times over the automatic repeat request (ARQ) Technique and up to two times over the HARQ Technique.

Thinh Nguyen - One of the best experts on this subject based on the ideXlab platform.

  • a hybrid network Coding Technique for single hop wireless networks
    IEEE Journal on Selected Areas in Communications, 2009
    Co-Authors: Tuan Tran, Thinh Nguyen, B Bose, V Gopal
    Abstract:

    In this paper, we investigate a hybrid network Coding Technique to be used at a wireless base station (BS) or access point (AP) to increase the throughput efficiency of single-hop wireless networks. Traditionally, to provide reliability, lost packets from different flows (applications) are retransmitted separately, leading to inefficient use of wireless bandwidth. Using the proposed hybrid network Coding approach, the BS encodes these lost packets, possibly from different flows together before broadcasting them to all wireless users. In this way, multiple wireless receivers can recover their lost packets simultaneously with a single transmission from the BS. Furthermore, simulations and theoretical analysis showed that when used in conjunction with an appropriate channel Coding Technique under typical channel conditions, this approach can increase the throughput efficiency up to 3.5 times over the automatic repeat request (ARQ), and up to 1.5 times over the HARQ Techniques.

  • a joint network channel Coding Technique for single hop wireless networks
    2008 Fourth Workshop on Network Coding Theory and Applications, 2008
    Co-Authors: Tuan Tran, Thinh Nguyen, B Bose
    Abstract:

    Reliable transmission over an error-prone channel is typically accomplished via channel Coding or retransmission of the lost information. In this paper, we investigate a joint network-channel Coding Technique to increase the bandwidth efficiency of wireless networks. In particular, we show that the proposed joint network-channel Coding approach which combines the recent network Coding (NC) concept with the traditional forward error correction (FEC) Technique, can increase the bandwidth efficiency in single-hop wireless networks such as WLAN or WiMAX networks. We present some analytical results on the bandwidth efficiency for both broadcast and unicast scenarios. Based on these theoretical results, we provide a heuristic algorithm that dynamically selects the optimal level of FEC to be used with network Coding Technique for given channel conditions. For typical channel characteristics, both simulations and theoretical results confirm that the proposed joint network channel Coding approach can reduce the bandwidth usage up to five times over the automatic repeat request (ARQ) Technique and up to two times over the HARQ Technique.

I A L Rassan - One of the best experts on this subject based on the ideXlab platform.

  • fast searching over compressed text using a new Coding Technique tagged sub optimal code tsc
    Data Compression Conference, 2004
    Co-Authors: A Bellaachia, I A L Rassan
    Abstract:

    In this paper, a new Coding Technique called tagged sub-optimal code (TSC) is proposed. TSC is a variable-length sub-optimal code that supports minimal prefix property. TSC Technique is beneficial in many types of applications: speeding up string matching over compressed text, speeding deCoding process, robustness of error detection and recovery during transmission, as well as in general-purpose integer representation code. The experimental results show that TSC is 8.9 times faster than string matching over compressed text using Huffman enCoding, and 3 times faster in the deCoding process.

  • Data Compression Conference - Fast searching over compressed text using a new Coding Technique: tagged sub-optimal code (TSC)
    Data Compression Conference 2004. Proceedings. DCC 2004, 2004
    Co-Authors: A Bellaachia, I A L Rassan
    Abstract:

    In this paper, a new Coding Technique called tagged sub-optimal code (TSC) is proposed. TSC is a variable-length sub-optimal code that supports minimal prefix property. TSC Technique is beneficial in many types of applications: speeding up string matching over compressed text, speeding deCoding process, robustness of error detection and recovery during transmission, as well as in general-purpose integer representation code. The experimental results show that TSC is 8.9 times faster than string matching over compressed text using Huffman enCoding, and 3 times faster in the deCoding process.