A Low-Latency Scanning with Association Mechanism for Real-Time Communication in Mobile WiMAX

被引：4

作者：

Chen, You-Lin ^{[1
]}

Tsao, Shiao-Li ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Comp Sci, Hsinchu 30010, Taiwan

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2012年 / 11卷 / 10期

关键词：

Mobile WiMAX; IEEE; 802.16; handover; scanning with association; contention-based ranging; FAST HANDOVER SCHEME; IEEE-802.16; NETWORKS; PERFORMANCE ANALYSIS;

D O I：

10.1109/TWC.2012.081312.111765

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In Mobile WiMAX, a mobile station (MS) scans neighboring base stations (BSs) before conducting handover. The MS may perform the association further, i.e., initial ranging, with neighboring BSs during scanning to obtain ranging parameters and/or service availability information for a potential handover to a BS and/or the selection of target BSs. However, the scanning with association scheme may introduce additional latency for handover. This study first evaluates the conventional scanning with association process, and then proposes a mechanism to reduce the association latency. The performance models of the proposed mechanism are presented and the accuracies of analytical models are verified by simulations. Results demonstrate that the proposed mechanism reduces the association latency by 61.9%-78.0% for audio services and 41.3%-65.4% for video services.

引用

页码：3550 / 3560

页数：11

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