A cross-layer fast handover scheme for Mobile WiMAX

被引：15

作者：

Chen, Ling ^{[1
]}

Cai, Xuejun ^{[1
]}

Sofia, Rute ^{[2
]}

Huang, Zhen ^{[3
]}

机构：

[1] Nokia Siemens Networks, RTP NT, Zpk 1, Beijing 100094, Peoples R China

[2] Nokia Siemens Networts, RTP NT NCT, Munich, Germany

[3] Beijing Univ Posts & Telecommun, Beijing, Peoples R China

来源：

2007 IEEE 66TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5 | 2007年

关键词：

cross-layer; handover; WiMAX; ranging;

D O I：

10.1109/VETECF.2007.335

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Mobile WiMAX standard (IEEE 802.16e-2005) brings wireless broadband to a new level due to the support of nomadism. Still, handover latency in Mobile WiMAX is an issue that may affect real-time continuity of application sessions. This is partially due to the Layer 2 scanning/ranging, as well as the network re-entry procedure, which may result in a latency of hundreds of milliseconds, far exceeding the requirement off typical real-time services (e.g., 150 ms for Voice over IP). In this paper, we describe a mechanism which incorporates information from several OSI Layers to speed up the Layer 2 handover. We show by means of simulations that this new mechanism can decrease the handover latency significantly, to less than 100 ins in most cases.

引用

页码：1578 / +

页数：2