標題: A power efficient MAC protocol for IEEE 802.11 multihop ad hoc networks
作者: Wu, Hung-Jui
Wang, Kuochen
Lee, Lung-Sheng
資訊工程學系
Department of Computer Science
關鍵字: IEEE 802.11;MAC protocol;multihop ad hoc network;power efficient
公開日期: 2006
摘要: In this paper, we propose a power efficient MAC protocol (PEMP) for IEEE 802.11 multihop ad hoc networks. Most of related work targeted at single hop ad hoc networks. In PEMP, when a node intends to transmit data, it will piggyback a data profile, which includes data size, on ATIM* and ATIM-ACK*. ATIM* and ATIM-ACK* are ATIM and ATIM-ACK with piggybacked data profiles, respectively. In this way, senders and receivers can inform their neighbor nodes of their data profiles. Then, each node calculates its transmission priority according to the collected data profiles. Based on transmission priorities, PEMP can schedule a better transmission sequence to reduce power consumption. By decreasing the idle time in the active state and adjusting the ATIM window dynamically based on network conditions, the power consumption of PEMP is 20% and 10% similar to 30% less than that of DPSM and IEEE 802.11 PSM, respectively. PEMP is applicable to multihop ad hoc networks and can achieve a good tradeoff between power consumption, throughput and delay.
URI: http://hdl.handle.net/11536/12797
ISBN: 3-540-37189-3
ISSN: 0302-9743
期刊: WIRELESS ALGORITHMS, SYSTEMS, AND APPLICATIONS, PROCEEDINGS
Volume: 4138
起始頁: 307
結束頁: 318
顯示於類別:會議論文