Supporting Seamless Mobility for P2P Live Streaming

Kim, Eunsam; Kim, Sangjin; Lee, Choonhwa

doi:10.1155/2014/134391

Cited by 4 publications

(1 citation statement)

References 20 publications

(23 reference statements)

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“…Otherwise, the mobile station (MS) keeps Ping-Ponging between technologies to search for better connection. The Ping-Pong effect causes unnecessary handoff processes and brings some weaknesses, including low network throughput, long handoff delay, and high dropping probability [ 4 , 5 ]. Another issue is the two interferences: the intercell interference (ICI) and the cochannel interference (CCI) from the surrounding BSs, which sharply degrades the received signal strength [ 6 – 8 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of a New Handover Approach in LTE and WiMAX

Hindia

Reza

Noordin

2014

The Scientific World Journal

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Nowadays, one of the most important challenges in heterogeneous networks is the connection consistency between the mobile station and the base stations. Furthermore, along the roaming process between the mobile station and the base station, the system performance degrades significantly due to the interferences from neighboring base stations, handovers to inaccurate base station and inappropriate technology selection. In this paper, several algorithms are proposed to improve mobile station performance and seamless mobility across the long-term evolution (LTE) and Worldwide Interoperability for Microwave Access (WiMAX) technologies, along with a minimum number of redundant handovers. Firstly, the enhanced global positioning system (GPS) and the novel received signal strength (RSS) prediction approaches are suggested to predict the target base station accurately. Then, the multiple criteria with two thresholds algorithm is proposed to prioritize the selection between LTE and WiMAX as the target technology. In addition, this study also covers the intercell and cochannel interference reduction by adjusting the frequency reuse ratio 3 (FRR3) to work with LTE and WiMAX. The obtained results demonstrate high next base station prediction efficiency and high accuracy for both horizontal and vertical handovers. Moreover, the received signal strength is kept at levels higher than the threshold, while maintaining low connection cost and delay within acceptable levels. In order to highlight the combination of the proposed algorithms' performance, it is compared with the existing RSS and multiple criteria handover decision algorithms.

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