Title :
Multichannel outage-aware MAC protocols for wireless networks
Author :
Lee, Hyukjin ; Lim, Cheng-Chew ; Choi, Jinho
Author_Institution :
Sch. of Electr. & Electron. Eng., Univ. of Adelaide, Adelaide, SA, Australia
Abstract :
Channel outage represents channel fading and interference. Since each user may experience different fading and interference (i.e., channel outage) over distinct channels, throughput may vary depending on channel selection of users. In this paper, we propose two types of multichannel outage-aware medium access control (MAC) protocols to improve throughput: 1) frequency-domain backoff MAC protocols with outage-aware refined channel sets using distributed channel selection, and 2) time-domain backoff MAC protocols with a lowest-outage increasing heuristic using centralised channel allocation to find optimal user sets. Simulation results show the impacts of the proposed MAC protocols on throughput under multichannel outage environments with respect to various user numbers.
Keywords :
access protocols; fading channels; radio networks; distributed channel selection; fading channel; frequency-domain backoff MAC protocols; medium access control protocols; multichannel outage-aware MAC protocols; time-domain backoff MAC protocols; wireless networks; Access protocols; Channel allocation; Fading; Interference; Media Access Protocol; Throughput; Time domain analysis; Wireless application protocol; Wireless communication; Wireless networks; Multichannel MAC protocols; channel outage; frequency-domain backoff; time-domain back;
Conference_Titel :
Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-2799-4
Electronic_ISBN :
978-1-4244-2800-7
DOI :
10.1109/ICIEA.2009.5138421
