Authors: Xiaomei Zhang, Liansheng Tan, Jie Li, Sufen Zhao, Hsiao-Hwa Chen
Addresses: Department of Computer Science, Central China Normal University, Wuhan 430079, China. ' Department of Computer Science, Central China Normal University, Wuhan 430079, China. ' Graduate School of Systems and Information Engineering, University of Tsukuba, Tsukuba Science City, Japan. ' Department of Computer Science, Central China Normal University, Wuhan 430079, China ' National Cheng Kung University, Tainan, Taiwan
Abstract: The application of multihop Wireless Ad Hoc Networks (WANETs) has been facing a great challenge to implement cooperative control over user transmission rates under the resource restrictions. In this paper, we propose an efficient bandwidth allocation scheme called Active-Time-Based Bandwidth Allocation Scheme (ATBAS) that can ensure fair bandwidth allocation among the users in a multihop WANET model. This scheme operates at each hop and fairly allots each competing flow a part of channel time, according to which each hop then computes the updating rate for each flow traversing the hop and records their updated rates into each data packet|s special control header. The source of each flow in this scheme can eventually adjust its sending rate to reach its fair share. An algorithm is developed to implement the above mechanism. We will show through simulation results that our proposed algorithm is able to fairly distribute bandwidth among multihop flows.
Keywords: time manager; bandwidth allocation; max–min fairness; wireless ad hoc networks; multihop WANETS; wireless networks; sensor networks; simulation; multihop flows.
International Journal of Sensor Networks, 2008 Vol.3 No.2, pp.134 - 140
Available online: 19 Feb 2008 *Full-text access for editors Access for subscribers Purchase this article Comment on this article