CCH-MAC: Evading hidden terminal in ad-hoc network

Author

Xuan Dong ; Shaohe Lv ; Yong Lu ; Xiaodong Wang ; Xingming Zhou

Author_Institution

Nat. Lab. of Parallel & Distrib. Process., Univ. of Defense Technol., Chansha, China

fYear

2014

fDate

22-24 Oct. 2014

Firstpage

261

Lastpage

266

Abstract

Hidden terminal and collisions are well-known problems due to broadcasting nature of wireless network. In this paper, we address an efficient MAC protocol to evade the potential collisions caused by hidden terminals, where advanced phycical layer technique, full-duplex, is exploited to coordinate channel contention among nodes within two-hops range. Furhter-more, cooperative channel hopping(CCH) MAC is developed to improve the frequency efficiency by limiting the interference of hidden terminals and enabling a collision-free channel for further transmission. Basically, a fined channel hopping mechanism is proposed to avoid the continually interference and cooperative coordination is subjoined by the transmission of cyclic prefix. To the best of our knowledge, CCH-MAC validates the detection of subchannel contention on NI USRPs and evaluation via simulations shows that CCH-MAC achieves at least 35% throughput gain over FICA with a slightly loss in fairness.

Keywords

access protocols; ad hoc networks; radio networks; CCH-MAC; MAC protocol; ad-hoc network; collision-free channel; cooperative channel hopping; phycical layer technique; wireless network; Decoding; Indexes; Interference; Network topology; Receivers; Throughput; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Communication Technology Convergence (ICTC), 2014 International Conference on

Conference_Location

Busan

Type

conf

DOI

10.1109/ICTC.2014.6983131

Filename

6983131