Title :
A cross-layer optimization of IEEE 802.11 MAC for wireless multihop networks
Author :
Hwang, June ; Kim, Seong-Lyun
Author_Institution :
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul
fDate :
7/1/2006 12:00:00 AM
Abstract :
Introducing multihop transmission in wireless networks has both pros and cons. It will improve the reliability of each wireless link by reducing the average transmission distance. On the other hand, it will add delay to the end-to-end QoS, which is caused by multiple packet relays. In this letter, we analyze the optimal performance of the IEEE 802.11 based multihop network, by jointly optimizing the carrier-sensing range of CSMA/CA and the target data rate of each wireless link.
Keywords :
broadband networks; carrier sense multiple access; computer network reliability; optimisation; quality of service; radio networks; telecommunication congestion control; wireless LAN; CSMA-CA; IEEE 802.11; MAC; QoS; carrier sense multiple access-collision avoidance; medium access control; multihop transmission; optimization; quality of service; reliability; wireless link; wireless network; Added delay; Collision avoidance; Interference; Multiaccess communication; Radio transmitters; Relays; Spread spectrum communication; Throughput; Wireless networks; Wireless sensor networks;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOM.2006.224410
