Position location and direction assisted handoff algorithm in DWCS

Handoff is an indispensable procedure to any radio access system. For the distributed wireless communications system (DWCS), a novel wireless access system, handoff algorithms are divided into two types: algorithm A, with a single antenna signal level as the handoff initiation criterion; algorithm B, with the total signal level as the handoff initiation criterion. It is verified that algorithm B is more suitable for DWCS. Subsequently, a position location and direction assisted algorithm B is presented, which can provide more accurate handoffs and better handoff performance.

[1]  Wu Wei-ling The comparison of handoff in DWCS and cellular system , 2005 .

[2]  R. Tafazolli,et al.  Position assisted handover algorithm for multi layer cell architecture , 1999, Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324).

[3]  M. Gudmundson Correlation Model for Shadow Fading in Mobile Radio Systems , 1991 .

[4]  S. Ariyavisitakul,et al.  A radio access system with distributed antennas , 1994, 1994 IEEE GLOBECOM. Communications: The Global Bridge.

[5]  Jing Wang,et al.  Distributed wireless communication system: a new architecture for future public wireless access , 2003, IEEE Commun. Mag..

[6]  Gordon L. Stüber,et al.  Direction biased handoff algorithms for urban microcells , 1994, Proceedings of IEEE Vehicular Technology Conference (VTC).

[7]  R. Soto,et al.  Position location assisted multi-valued logic handoff algorithm , 1999, Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324).