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PSS Movement Prediction Algorithm for Seamless hando  

Lee, Ho-Jeong (Department of Electronic and Communications Engineering, Kwangwoon Univ.)
Yun, Chan-Young (Department of Embedded Software, Kaywon School of Art and Design)
Oh, Young-Hwan (Department of Electronic and Communications Engineering, Kwangwoon Univ.)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.43, no.12, 2006 , pp. 53-60 More about this Journal
Abstract
Handover of WiBro is based on 802.16e hard handover scheme. When PSS is handover, it is handover that confirm neighbor's cell condition and RAS ID in neighbor advertisement message. Serving RAS transmits HO-notification message to neighbor RAS. Transmiting HO-notification message to neighbor RAS, it occurs many signaling traffics. Also, When WiBro is handover, It occurs many packet loss. Therefore, user suffer service degradation. LPM handover is supporting seamless handover because it buffers data packets during handover. So It is proposed scheme that predicts is LPM handover and reserves target RAS with pre-authentication. These schemes occur many signaling traffics. In this paper, we propose PSS Movement Prediction to solve signaling traffic. Target RAS is decided by old data in history cache. When serving RAS receives HO-notification-RSP message to target RAS, target RAS inform to crossover node. And crossover node bicast data packet. If handover is over, target RAS forward data packet. Therefore, It reduces signaling traffics but increase handover success rate. When history cache success, It decrease about 48% total traffic. But When history cache fails, It increase about 6% total traffic
Keywords
802.16e; WiBro; Handover; Prediction;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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