Performance evaluation of multiple-rate mobile ad hoc networks

被引:4
作者
Ding, Gang [1 ]
Wu, Xiaoxin
Bhargava, Bharat
机构
[1] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA
[2] Purdue Univ, Dept Comp Sci, W Lafayette, IN 47907 USA
基金
美国国家科学基金会;
关键词
mobile ad hoc network; link adaptation; link distance; network allocation vector;
D O I
10.1016/j.peva.2006.05.004
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Existing wireless networks usually provide multiple data transmission rates. This paper presents a simulation study of the performance of multiple-rate mobile ad hoc networks (MANETs), based on an evolved ns-2 simulator. At the physical layer, realistic models such as the Walfisch-Ikagami radio propagation model and lognormal fading are implemented. At the link layer, a link adaptation algorithm is implemented to select an appropriate data transmission rate based on the receiving signal-to-noise ratio. At the transport and application layers, different data traffics, including constant bit rate, TCP, voice over IP, and video, are generated. We study the network performance such as throughput, delivery ratio, and end-to-end delay when position-based routing is used. We also study how node mobility and position error affect the performance. In addition, we investigate the impact of the link distance, namely the geographic distance for a hop, on the end-to-end network throughput. This work is a comprehensive simulation study on the impact of various factors on the performance of MANETs. It also provides guidelines for future protocol and algorithm design. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:1110 / 1126
页数:17
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