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Handoff Procedure for Seamless Service in IP and OFDM Based 4G Mobile Systems
Namgi KIM Hyunsoo YOON
IEICE TRANSACTIONS on Electronics
Publication Date: 2005/12/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Wireless Technologies and Computational Electromagnetics)
Category: Mobile Communication
handoff, IP, OFDM, 4G mobile system,
Full Text: PDF(244.1KB)>>
We propose an efficient and practical seamless handoff scheme for 4G mobile systems based on IP and OFDM. The seamless handoff scheme obtains the physical channel for handoff in a contention-free manner with pre-synchronization and pre-forwarding IP contexts. As a result, it thoroughly decreases the physical channel blocking time as well as IP layer context-switching time to minimize total handoff delay.