Title
Coordinated dynamic physical carrier sensing based on local optimization in wireless ad hoc networks
Abstract
Carrier sensing schemes have been recognized as a key knob for improving network performance. The distributed coordination function (DCF) and its modifications focus on the feature of the ongoing transmission links to enhance link throughput, however, a lack of coordinated adjustment of the surrounding nodes may reduce the aggregate throughput of entire network. In this paper, we are concerned with the delayed transmissions from exposed terminals, and interference and collisions from hidden terminals. We classify the neighboring areas for a given transmission link into three areas: a hidden area, an exposed area and an overlapped area, and then propose a coordinated dynamic physical carrier sense (CDPCS) scheme in which the carrier sensing threshold (CST) values of the neighbors are adjusted at the same time to achieve local optimization by utilizing the exchanged information and states of neighboring nodes. Simulation results show that the proposed schemes can work effectively.
Year
DOI
Venue
2013
10.1109/WCNC.2013.6554597
WCNC
Keywords
Field
DocType
optimisation,carrier sensing threshold,coordinated dynamic physical carrier sense scheme,hidden area,transmission links,link throughput,delayed transmissions,network performance,exchanged information,aggregate throughput,exposed area,distributed coordination function,local optimization,wireless ad hoc networks,coordinated dynamic physical carrier sensing,overlapped area,ad hoc networks,vectors,interference,sensors,tuning,optimization,throughput
Computer science,Computer network,Distributed coordination function,Interference (wave propagation),Throughput,Local search (optimization),Wireless ad hoc network,Network performance
Conference
Volume
Issue
ISSN
null
null
1525-3511 E-ISBN : 978-1-4673-5937-5
ISBN
Citations 
PageRank 
978-1-4673-5937-5
5
0.51
References 
Authors
14
4
Name
Order
Citations
PageRank
Xin Ming Zhang117123.29
Guoqing Qiu250.51
Zhilong Dai350.51
Dan Keun Sung41478147.84