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http://dx.doi.org/10.9728/dcs.2014.15.3.319

Dynamic Carrier Sensing Threshold Scheme based on SINR for Throughput Improvement in MANET  

Lee, Hyun-No (강원대학교 IT대학 전자통신공학과)
Kim, Dong-Hoi (강원대학교 IT대학 전자통신공학과)
Publication Information
Journal of Digital Contents Society / v.15, no.3, 2014 , pp. 319-326 More about this Journal
Abstract
IEEE 802.11 WLAN uses CSMA/CA(Carrier Sense Multiple Access/Collision Avoidance) method in MAC(Media Access Control) protocol, and through the carrier sense checks whether other users use the channel during the data transmission to avoid the data collision. Currently, IEEE 802.11 standard recommends the use of a fixed threshold which gives an impact on carrier sensing range. However, the existing scheme using the fixed threshold causes the operation of network to be inefficiency owing to the mobility in MANET(Mobile Ad hoc NETwork). In this paper, we found the better network throughput to be obtained by applying the proposed scheme, which chooses properly the carrier sensing threshold and transmission rate considering SINR(Signal to Interference-plus-Noise Ratio), to the MANET.
Keywords
IEEE 802.11 WLAN; MANET; SINR; Carrier Sensing Threshold; Transmission Rate;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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