DocumentCode :
3257649
Title :
Mobile Direction Assisted Predictive Base Station Switching for Broadband Wireless Systems
Author :
Can Ozdural, O. ; Huaping Liu
Author_Institution :
Oregon State Univ., Corvallis
fYear :
2007
fDate :
24-28 June 2007
Firstpage :
5570
Lastpage :
5574
Abstract :
Many broadband wireless access (BWA) systems, such as IEEE 802.16e, support high-mobility users traveling at vehicular speeds. BWA systems capable of high data rates and low bit-error rates typically require micro-cell or pico- cell deployments. High-mobility users usually need to perform frequent handovers in smaller cell structures, which could drastically increase system overhead and thus degrade the overall network performance. This paper presents a new handover decision algorithm for BWA systems, called predictive base station switching (PBSS). PBSS makes use of the mobile speed and direction information to reduce the number of handovers without degrading the received signal level. It is demonstrated via simulation results that PBSS performs better than existing algorithms based on signal levels and distance information, even when the mobile stations move randomly or when accurate direction and speed information is unavailable.
Keywords :
IEEE standards; broadband networks; error statistics; mobility management (mobile radio); radio access networks; telecommunication switching; IEEE 802.16e; bit-error rates; mobile broadband wireless access systems; mobility; predictive base station switching; Base stations; Bit error rate; Communication switching; Communications Society; Degradation; Delay; Frequency; Hysteresis; Mobile computing; Velocity measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, 2007. ICC '07. IEEE International Conference on
Conference_Location :
Glasgow
Print_ISBN :
1-4244-0353-7
Type :
conf
DOI :
10.1109/ICC.2007.923
Filename :
4289594
Link To Document :
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