標題: Optimal transmission range for wireless ad hoc networks based on energy efficiency
作者: Deng, Jing
Han, Yunghsiang S.
Chen, Po-Ning
Varshney, Prarnod K.
電信工程研究所
Institute of Communications Engineering
關鍵字: energy efficiency;optimal transmission range;wireless ad hoc networks
公開日期: 1-九月-2007
摘要: The transmission range that achieves the most economical use of energy in wireless ad hoc networks is studied for uniformly distributed network nodes. By assuming the existence of forwarding neighbors and the knowledge of their locations, the average per-hop packet progress for a transmission range that is universal for all nodes is derived. This progress is then used to identify the optimal per-hop transmission range that gives the maximal energy efficiency. Equipped with this analytical result, the relation between the most energy-economical transmission range and the node density, as well as the path-loss exponent, is numerically investigated. It is observed that when the path-loss exponent is high (such as four), the optimal transmission ranges are almost identical over the range of node densities that we studied. However, when the path-loss exponent is only two, the optimal transmission range decreases noticeably as the node density increases. Simulation results also confirm the optimality of the per-hop transmission range that we found analytically.
URI: http://dx.doi.org/10.1109/TCOMM.2007.904395
http://hdl.handle.net/11536/10360
ISSN: 0090-6778
DOI: 10.1109/TCOMM.2007.904395
期刊: IEEE TRANSACTIONS ON COMMUNICATIONS
Volume: 55
Issue: 9
起始頁: 1772
結束頁: 1782
顯示於類別:期刊論文


文件中的檔案:

  1. 000249592200016.pdf