TY - GEN
T1 - Frame length design for Multiband-OFDM ultra Wideband networks
AU - Zeng, Liaoyuan
AU - Cano, Eduardo
AU - Barry, Michael
AU - McGrath, Sean
PY - 2008
Y1 - 2008
N2 - A new design of the optimal MAC frame payload length for maximizing the saturation throughput of the Prioritized Contention Access (PCA) of the WiMedia Ultra Wideband (UWB) standard in Rayleigh fading channel is presented in this paper. In the WiMedia standard, the Multiband Orthogonal Frequency Division Multiplexing (MB-OFDM) is used as the basic physical scheme. The proposed design is based on the through-put analysis carried out by extending an original Enhanced Distributed Contention Access (EDCA) model for 802.1le into the MB-OFDM UWB protocol. The extended model considers the effects of the bit error rate, the transmission opportunity limits, and the uniqueness of WiMedia MAC timing structure. The station through-put is sensitive to the frame payload length, and the optimal frame payload length increases exponentially when the value of the signal-to-noise ratio is higher. The optimal payload length is independent of the number of the active stations, data rate, and the priority of the Access Categories (ACs). Therefore, a station can dynamically adapt the length of the transmitted frame in the MAC layer according to the current SNR level so as to maximize its saturation throughput in the MB-OFDM UWB network.
AB - A new design of the optimal MAC frame payload length for maximizing the saturation throughput of the Prioritized Contention Access (PCA) of the WiMedia Ultra Wideband (UWB) standard in Rayleigh fading channel is presented in this paper. In the WiMedia standard, the Multiband Orthogonal Frequency Division Multiplexing (MB-OFDM) is used as the basic physical scheme. The proposed design is based on the through-put analysis carried out by extending an original Enhanced Distributed Contention Access (EDCA) model for 802.1le into the MB-OFDM UWB protocol. The extended model considers the effects of the bit error rate, the transmission opportunity limits, and the uniqueness of WiMedia MAC timing structure. The station through-put is sensitive to the frame payload length, and the optimal frame payload length increases exponentially when the value of the signal-to-noise ratio is higher. The optimal payload length is independent of the number of the active stations, data rate, and the priority of the Access Categories (ACs). Therefore, a station can dynamically adapt the length of the transmitted frame in the MAC layer according to the current SNR level so as to maximize its saturation throughput in the MB-OFDM UWB network.
KW - Bit error rate
KW - Frame length
KW - Multi-band orthogonal frequency division multiplexing
KW - Prioritized contention access
KW - Rayleigh fading
KW - Saturation throughput
KW - Ultra wideband
UR - http://www.scopus.com/inward/record.url?scp=58049156440&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:58049156440
SN - 9789898111623
T3 - WINSYS 2008 - International Conference on Wireless Information Networks and Systems, Proceedings
SP - 113
EP - 120
BT - WINSYS 2008 - International Conference on Wireless Information Networks and Systems, Proceedings
T2 - International Conference on Wireless Information Networks and Systems, WINSYS 2008
Y2 - 26 July 2008 through 29 July 2008
ER -