Performance Evaluation for IEEE 802.16j Wireless Relay Networks
Date Issued
2008
Date
2008
Author(s)
Chen, Chi-Shiu
Abstract
Wireless Local Networks (WLAN) have grown quickly in recent years, increasing the convenience of daily life by making information easy to obtain. However, WLANs work only within a radius of a hundred meters. Providing ubiquitous Broadband Wireless Access (BWA) service is a major challenge for telecommunication companies. IEEE 802.16 provides a solution to this issue, since it can provide radio coverage from several miles to dozens of miles with data rates up to 75Mbps. However, like other radio communication technologies, IEEE 802.16 suffers from normal radio propagation problems, including path loss and shadow fading. These problems degrade the data rate of Subscriber Station (SS), mean that the service providers cannot guarantee the Quality of Service (QoS) of the BWA service. To solve such issues, the IEEE task group j is defining the 802.16j specification to enhance the QoS through the Multihop Relay (MR) networks. IEEE 802.16j solves the radio propagation problems by placing the Relay Station (RS) into conventional 802.16 networks in order to relay the signal from Base Station (BS) to SS. This study analyzes how the MR network improves the system throughput, and the drawbacks and rules for RS placement through experiments.
Subjects
802.16
Worldwide Interoperability for Microwave Access (WiMAX)
Multihop Relay (MR) Networks
Broadband Wireless Access (BWA) Systems
Wireless Metropolitan Area Network (WMAN)
Type
thesis
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