標題: Opportunistic access with random subchannel backoff (OARSB) for OFDMA uplink
作者: Chan, Yu-Jung
Chien, Feng-Tsun
Kuo, C. -C. Jay
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 2007
摘要: A distributed medium access control (MAC) algorithm for uplink OFDMA networks under the IEEE 802.16 framework is proposed and analyzed in this work. We present a simple yet efficient algorithm to enhance the system throughput by integrating opportunistic medium access and collision resolution through, random subchannel backoff. Consequently, the resulting algorithm is called the opportunistic access with random subchannel backoff (OARSB) scheme. OARSB not only achieves distributed coordination among users but also reduces the amount of information exchange between the base station and users. The throughput and delay performance analysis of OARSB is conducted using a Markov chain model. The superior performance of OARSB over an existing scheme is demonstrated by analysis as well as computer simulation.
URI: http://hdl.handle.net/11536/135160
ISBN: 978-1-4244-1042-2
ISSN: 1930-529X
期刊: GLOBECOM 2007: 2007 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-11
起始頁: 3240
結束頁: +
顯示於類別:會議論文