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Call Blocking Probability and Bandwidth Utilization of OFDM Subcarrier Allocation in Next-generation Wireless Networks

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題名: Call Blocking Probability and Bandwidth Utilization of OFDM Subcarrier Allocation in Next-generation Wireless Networks

作者: Jui-Chi Chen;Wen-Shyen E. Chen

關鍵詞: OFDM modulation;bandwidth allocation;probability;queueing theory;radio networks

日期: 2006

上傳時間: 2010-04-15T05:42:06Z

摘要: Various studies have devised OFDM subcarrier-allocation schemes in next-generation wireless networks. However, the subcarrier-allocation system performance has seldom been assessed, especially in terms of the call blocking probability (CBP) and bandwidth utilization.(BU). This study proposes a batch-arrival bath-loss queueing model to evaluate the performance or the subcarrier-allocation system,and derives expressions for calculating two important system performance measurements, CBP and BU. Simulation results. indicate that the measures appear to work.

The model should be helpful for constructing OFDM based wireless networks

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