Proposal of Heterogeneous Wireless Network with Handover in Application Layer: Feasibility Study Based on Field Trial Results

Suguru KAMEDA  Hiroshi OGUMA  Noboru IZUKA  Fumihiro YAMAGATA  Yasuyoshi ASANO  Yoshiharu YAMAZAKI  Shoichi TANIFUJI  Noriharu SUEMATSU  Tadashi TAKAGI  Kazuo TSUBOUCHI  

IEICE TRANSACTIONS on Communications   Vol.E95-B   No.4   pp.1152-1160
Publication Date: 2012/04/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.1152
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
heterogeneous wireless networks,  WLAN,  MBWA,  handover,  

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This paper proposes a heterogeneous wireless network with handover in the application layer. The proposed network requires no upgrade of wireless infrastructure and mobile terminals to convert the present homogeneous networks to the proposed heterogeneous network. Only installing application programs on the content server side and the mobile terminal side is required. The performance of the proposed network has been evaluated in a field trial using a mobile broadband wireless access (MBWA) air interface with wide coverage and a wireless local area network (WLAN) air interface with high throughput. The field trial results show that the maximum value of the handover outage time is only 170 ms. The proposed heterogeneous wireless network is promising since both high throughput and wide coverage area are attained by a combination of the proposed handover scheme with the present homogeneous wireless networks.