Paper Info
Title
Polarization-based cooperative directional MAC protocol for ad hoc networks
Abstract
Numerous directional medium access control (DMAC) protocols have been developed to enhance the capacity of ad hoc networks using the underlying advanced physical layer techniques, such as beam-forming, multiuser detection (MUD), and multiple-input-multiple-output (MIMO). In this paper, we propose an innovative fully distributed DMAC protocol that cooperatively makes use of polarization diversity in low-mobility urban/suburban outdoor wireless ad hoc network environment. In the proposed cooperative polarization DMAC protocol (CPDMAC), each node directionally senses on both vertical and horizontal polarizations and dynamically adapts polarization that minimizes overall interference in the ad hoc network. Analysis is performed to establish relationship between vertically and horizontally polarized nodes in the network. Further, a theoretical lower bound is derived for probability of successful transmission to show capacity improvement as a function of cross polarization ratio (CPR). Simulation results confirm from 2% up to 400% improvement in average node throughput at data rate of 1.95Mbps when compared to the traditional DMAC protocol. Moreover, our study clearly shows that the average throughput difference increases with increasing node density when compared to the traditional DMAC protocol.
Year
DOI
Venue
2013
10.1016/j.adhoc.2011.01.013
Ad Hoc Networks
Keywords
Field
DocType
Ad hoc network,Cooperative polarization diversity,Directional MAC,Throughput
Mobile ad hoc network,Computer science,MIMO,Computer network,Multiuser detection,Ad hoc wireless distribution service,Optimized Link State Routing Protocol,Physical layer,Wireless ad hoc network,Throughput,Distributed computing
Journal
Volume
Issue
ISSN
11
4
Ad Hoc Networks
Citations 
PageRank 
References 
4
0.40
26
Authors
4
Name
Order
Citations
PageRank
Murad Khalid11438.76
Xuan Hung Le2929.05
Inho Ra37710.46
Ravi Sankar465655.66