The Experts below are selected from a list of 294 Experts worldwide ranked by ideXlab platform

Yueming Lu - One of the best experts on this subject based on the ideXlab platform.

Sung-hwa Hong - One of the best experts on this subject based on the ideXlab platform.

  • NCM (1) - The Performance Analysis of New Routing Protocol in Sensor Networks Useful in Ubiquitous Home Network Applications
    2008 Fourth International Conference on Networked Computing and Advanced Information Management, 2008
    Co-Authors: Sung-hwa Hong
    Abstract:

    In ubiquitous Home networks, sensors collect various Home environment data in the Home. Since the sensor nodes are equipped with small, often irreplaceable, batteries with limited power capacity, it is essential that the network be energy-efficient in order to maximize the lifetime and to minimize the hop count. However, since the use of sensors embedded in consumer electronics devices is increasing, we consider two types of sensor nodes, the wireless sensor node type, where the distance between the sensor nodes is limited by their transmission range and the wireless embedded sensor node(WEN) type, where the distance between the sensor nodes can be much longer. In this paper, we present a new sensor routing scheme that provides power-centric data delivery from sensors to the Home Base Station. The proposed scheme divides the Home into areas such as rooms and deploys relay nodes to each area. The WENs collect data from the sensors and deliver the data only to the Home Base Station. Sensors deliver their data to the relay nodes or the Home Base Station through the sensor with the strongest power. The performance results show that the proposed scheme is more efficient in wireless Home networks than existing schemes.

  • The Performance Analysis of New Routing Protocol in Sensor Networks Useful in Ubiquitous Home Network Applications
    2008 Fourth International Conference on Networked Computing and Advanced Information Management, 2008
    Co-Authors: Sung-hwa Hong
    Abstract:

    In ubiquitous Home networks, sensors collect various Home environment data in the Home. Since the sensor nodes are equipped with small, often irreplaceable, batteries with limited power capacity, it is essential that the network be energy-efficient in order to maximize the lifetime and to minimize the hop count. However, since the use of sensors embedded in consumer electronics devices is increasing, we consider two types of sensor nodes, the wireless sensor node type, where the distance between the sensor nodes is limited by their transmission range and the wireless embedded sensor node(WEN) type, where the distance between the sensor nodes can be much longer. In this paper, we present a new sensor routing scheme that provides power-centric data delivery from sensors to the Home Base Station. The proposed scheme divides the Home into areas such as rooms and deploys relay nodes to each area. The WENs collect data from the sensors and deliver the data only to the Home Base Station. Sensors deliver their data to the relay nodes or the Home Base Station through the sensor with the strongest power. The performance results show that the proposed scheme is more efficient in wireless Home networks than existing schemes.

  • A Base-Station centric data gathering routing protocol in sensor networks useful in Home automation applications
    IEEE Transactions on Consumer Electronics, 2007
    Co-Authors: Sung-hwa Hong
    Abstract:

    In the future ubiquitous Home network, sensors will collect various Home environment data in the Home. Since the sensor nodes are equipped with small, often irreplaceable, batteries with limited power capacity, it is essential that the network be energy-efficient in order to maximize its lifetime. Our study, described in this paper, was divided into two classes: the primary class was to set a power-Based level and the secondary class was to propose an offer of a Home automation using a routing technique centered on a sensor network to set a flooding level. The proposed scheme divides the Home into areas such as rooms and locates the WENs in each area. The WENs collect data from sensors and deliver the data to the Home Base Station only. Sensors deliver the data to the WENs or the Home Base Station through the sensor with the stronger power. Performance results show that the proposed scheme is more, efficient with a wireless Home network.

P.a. Ranta - One of the best experts on this subject based on the ideXlab platform.

  • Fast power control for GSM HBS using training sequences
    1997 IEEE 47th Vehicular Technology Conference. Technology in Motion, 1997
    Co-Authors: M.i. Silventoinen, P.a. Ranta, M. Raitola
    Abstract:

    We investigate the usage of fast power control (PC) in Global System for Mobile Communications (GSM) Based Home Base Station (HBS) system to alleviate Rayleigh fading for slow moving mobile Stations (MS). Low-speed MSs suffer from Rayleigh fading most due to the long periods they spend in the fading dips. Especially, if the system does not employ other techniques to combat Rayleigh fading, such as frequency hopping (FH), the negative effects of the fading are serious. To implement the signalling for fast PC, we propose the usage of training sequences to transfer the power control information over the GSM radio interface. The benefits of this method are various: the transfer of the PC commands will be fast, reliable and the pay load of the frame is not wasted. The magnitude of the improvement was assessed by simulating the link using the COSSAP simulating tool. The conclusion was that the fast PC will increase the link capacity and partly compensates the lack of frequency hopping.

  • Analysis of a new channel access method for Home Base Station
    Proceedings of ICUPC - 5th International Conference on Universal Personal Communications, 1996
    Co-Authors: M.i. Silventoinen, M. Kuusela, P.a. Ranta
    Abstract:

    This paper addresses the problem of allocating frequencies in a GSM-Based Home Base Station (HBS) system. A novel solution called total frequency hopping (TFH) is presented in order to overcome the frequency allocation and the inter-HBS synchronisation problems. The HBS system will use the same frequency band as the overlaying GSM network and thus creates more interference to it. The simulation results reveal that the negative impact of the underlying HBS system on the GSM network performance is minimal provided that the HBS transmission (TX) power is reasonable low. The TX power cannot be arbitrarily low, however, since the HBS system must be able to function in the presence of the interference from the overlaying high power GSM network. When the power ratio between GSM Base Station and HBS is around 40 dB, the both networks can co-exist at the same frequency band.

  • Total frequency hopping for Home Base Stations
    1996 IEEE International Conference on Personal Wireless Communications Proceedings and Exhibition. Future Access, 1996
    Co-Authors: M.i. Silventoinen, M. Kuusela, P.a. Ranta
    Abstract:

    This paper addresses the problem of allocating frequencies in a GSM-Based Home Base Station (HBS) system. A novel solution called total frequency hopping (TFH) is presented in order to overcome the frequency allocation and the inter-HBS synchronisation problems. The HBS system will use the same frequency band as the overlaying GSM network and thus result in more interference. The simulation results reveal that the negative impact of the underlying HBS system to the GSM network performance is minimal.

Guoan Bi - One of the best experts on this subject based on the ideXlab platform.

  • WCNC - Dynamic access strategy selection in user deployed small cell networks
    2013 IEEE Wireless Communications and Networking Conference (WCNC), 2013
    Co-Authors: Pu Yuan, Ying-chang Liang, Guoan Bi
    Abstract:

    In this paper, the access strategy for spectrum-sharing Based two-tier networks is investigated. By exploring the motivations of the Home Base Station (HBS) and the macrocell user (MU), we propose a Stackelberg game Based approach, which enables them to improve their performances by establishing direct links. The proposed approach copes with the distributed nature of the user-deployed small cell networks, and requires no inter-cell coordinations. Experimental results show that the proposed approach can guarantee the capacity gain of the small cells, while improving the energy efficiency of the macrocell users. Furthermore, by adjusting the objective function, the benefits of open access can be balanced between the capacity gain of small cells and the energy efficiency improvement of the MUs. Therefore it can be applied flexibly for various design purposes.

  • Dynamic access strategy selection in user deployed small cell networks
    2013 IEEE Wireless Communications and Networking Conference (WCNC), 2013
    Co-Authors: Pu Yuan, Ying-chang Liang, Guoan Bi
    Abstract:

    In this paper, the access strategy for spectrum-sharing Based two-tier networks is investigated. By exploring the motivations of the Home Base Station (HBS) and the macrocell user (MU), we propose a Stackelberg game Based approach, which enables them to improve their performances by establishing direct links. The proposed approach copes with the distributed nature of the user-deployed small cell networks, and requires no inter-cell coordinations. Experimental results show that the proposed approach can guarantee the capacity gain of the small cells, while improving the energy efficiency of the macrocell users. Furthermore, by adjusting the objective function, the benefits of open access can be balanced between the capacity gain of small cells and the energy efficiency improvement of the MUs. Therefore it can be applied flexibly for various design purposes.

Chau Yuen - One of the best experts on this subject based on the ideXlab platform.