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In next-generation cellular systems including 3.9G and IMT-advanced systems, voice-over-IP (VoIP) services will be provided to users instead of conventional circuit switch-based voice calls. VoIP packets have peculiar characteristics that the packet length is short and packets are frequently generated. These phenomena require significant radio resources to send control channels in which resource assignment...
Wide spread adoption of mobile Internet services will increase the demand for low cost high capacity wireless networks. Cooperation between different types of operators will enable increased network utilization and availability for the end-users. This will lead to more satisfied customers and potentially both more users and increased usage. The benefits of cooperation is clear for end-users as they...
In this paper, we investigate the performance of MMR system in non-transparent mode. The IEEE 802.16j MMR system has two mode of operation, single-frame mode and multi-frame mode. In the analysis, we assume that channel interference between MR-BS and RS, or between RSs anywhere in the given area is negligible. The performance is presented in terms of frame efficiency by varying number of RS and BS...
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