Open AccessMARS: a multiple access scheme with sender driven and reception first for smart antenna in ad hoc networks
Author(s) -
Lai Wei Kuang,
Tseng KuoShu,
Chen JiunnChing
Publication year - 2009
Publication title -
wireless communications and mobile computing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.42
H-Index - 64
eISSN - 1530-8677
pISSN - 1530-8669
DOI - 10.1002/wcm.600
Subject(s) - computer science , computer network , wireless ad hoc network , space division multiple access , transmission (telecommunications) , throughput , bottleneck , directional antenna , time division multiple access , antenna (radio) , wireless , telecommunications , telecommunications link , embedded system
The deployment of directional antennas offers many advantages, such as transmission range extension, co‐channel interference reducing, the increasing of spatial reuse degree, throughput improving of networks, and transmission power saving. Hence, many ad hoc MAC protocols with directional antennas have been proposed. However, these protocols do not provide significant improvement of network performance due to the lack of supporting multiple transmissions and receptions simultaneously. With the adaptive beam‐forming system (Smart Antenna), a newly designed MAC protocol (MARS) that enables nodes with multiple transmissions and receptions is proposed. Simulation results show that our MARS do exploit the advantage of space division multiple access. In terms of total number of data forward and complete sessions in bottleneck nodes, MARS achieves three times better than Novel and nine times better than IEEE 802.11. In addition, the end‐to‐end delay keeps very short. Copyright © 2008 John Wiley & Sons, Ltd.