標題: A jamming-based MAC protocol for wireless multihop ad hoc networks
作者: Ye, SR
Wang, YC
Tseng, YC
資訊工程學系
Department of Computer Science
關鍵字: IEEE 802.11;medium access control (MAC);mobile ad hoc network;mobile computing;protocol;wireless communication
公開日期: 2003
摘要: One critical issue in multihop ad hoc networks is the medium access control (MAC). The IEEE 802.11 MAC protocol is originally designed for fully connected, one-hop ad hoc networks but not for multihop ad hoc networks. In addition to the well known hidden-terminal problem, we found that IEEE 802.11 also suffers from an erroneous reservation problem which occurs when RTS-CTS exchange fails but the channel is incorrectly reserved. In this paper, we propose a jamming-based MAC (JMAC) protocol that is not only free from both hidden-terminal and the erroneous reservation problems but also allows more concurrent transmission/reception activities for stations within each other's transmission range. The idea behind the JMAC is to separate source stations' traffic from destination stations' traffic into different channels (i.e., dividing the shared medium into two channels), and explicitly signal the channel status by jamming the channels. Simulation results show that the JMAC can provide higher channel utilization when system is in high traffic load and the frame size is medium or large.
URI: http://hdl.handle.net/11536/18508
ISBN: 0-7803-7954-3
ISSN: 1090-3038
期刊: 2003 IEEE 58TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS1-5, PROCEEDINGS
起始頁: 1396
結束頁: 1400
顯示於類別:會議論文