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A Mobile P2P Message Platform Enabling the Energy-Efficient Handover between Heterogeneous Networks  

Kim, Tae-Yong (LG전자 단말연구소)
Kang, Kyung-Ran (아주대학교 정보및컴퓨터공학부)
Cho, Young-Jong (아주대학교 정보및컴퓨터공학부)
Publication Information
Journal of KIISE:Computing Practices and Letters / v.15, no.10, 2009 , pp. 724-739 More about this Journal
Abstract
This paper suggests the energy-efficient message delivery scheme and the software platform which exploits the multiple network interfaces of the mobile terminals and GPS in the current mobile devices. The mobile terminals determine the delivery method among 'direct', 'indirect', and 'WAN' based on the position information of itself and other terminals. 'Direct' method sends a message directly to the target terminal using local RAT. 'Indirect' method extends the service area by exploiting intermediate terminals as relay node. If the target terminal is too far to reach through 'direct' or 'indirect' method, the message is sent using wireless WAN technology. Our proposed scheme exploits the position information and, thus, power consumption is drastically reduced in determining handover time and direction. Network simulation results show that our proposed delivery scheme improves the message transfer efficiency and the handover detection latency. We implemented a message platform in a smart phone realizing the proposed delivery scheme. We compared our platform with other typical message platforms from energy efficiency aspect by observing the real power consumption and applying the mathematical modeling. The comparison results show that our platform requires significantly less power.
Keywords
Mobile P2P; Mobile Message Platform; Heterogeneous Networks; Energy-efficiency;
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