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2007
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The Analysis of the Optimal Periodic Ranging Slot Number in IEEE 802.16 OFDMA Systems

9 years 21 days ago
The Analysis of the Optimal Periodic Ranging Slot Number in IEEE 802.16 OFDMA Systems
As part of the IEEE 802.16 protocol, the random access scheme is used for ranging. The ratio between the numbers of periodic ranging slots and data slots in the uplink subframe decides the contention throughput, ranging delay and data throughput, all of which are important parameters of the system performance. However no specific ratio is standardized in the protocol. So, it is necessary to determine the optimal number of periodic ranging slots which is the decisive factor of the ratio. In this paper, the three parameters above are analyzed and the optimal number of the periodic ranging slots is derived. In addition, an estimation method is proposed to predict the number of contention users. The correctness of the analysis is verified by the simulation results, and it is demonstrated that the contention throughput efficiency is high with the derived optimal number.
Jihua Zhou, Xin Jin, Jiangtao Dong, Jinglin Shi, Z
Added 04 Jun 2010
Updated 04 Jun 2010
Type Conference
Year 2007
Where WIMOB
Authors Jihua Zhou, Xin Jin, Jiangtao Dong, Jinglin Shi, Zhongcheng Li
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