Home // International Journal On Advances in Networks and Services, volume 6, numbers 1 and 2, 2013 // View article
Authors:
Go Hasegawa
Yuuki Ise
Yoshiaki Taniguchi
Hirotaka Nakano
Keywords: IEEE 802.16j, wireless multi-hop networks, relay network, obstacles, radio wave blocking
Abstract:
In IEEE 802.16j networks, radio wave interference between wireless links must be taken into account when radio resources are assigned to network links. The protocol model, which defines the transmission and interference ranges as circles, is well-known as one of the major radio interference models. Although a lot of related studies on IEEE 802.16j networks use the protocol model, they do not consider the presence of obstacles. In this paper, we first investigate the performance of IEEE 802.16j networks considering the effect of obstacles. For that purpose, we define an obstacle model and extended protocol model for accommodating obstacles, where radio waves propagation is obstructed by obstacles. Next, the performance of IEEE 802.16j networks is evaluated through simulation experiments using the obstacle model and the extended protocol model. Additionally, we present a method for estimating the performance of IEEE 802.16j networks with obstacles. Then, we use multiple regression analysis based on simulation results and construct regression equations for network service ratio and power-to-throughput ratio. By evaluating the accuracy of the developed equations based on real-world environment, we confirm that the service ratio can be estimated with a high degree of accuracy when the distribution density of obstacle is small.
Pages: 17 to 26
Copyright: Copyright (c) to authors, 2013. Used with permission.
Publication date: June 30, 2013
Published in: journal
ISSN: 1942-2644