The Transactions of the Korean Institute of Electrical Engineers P (전기학회논문지P)

The Korean Institute of Electrical Engineers (대한전기학회)
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Throughput Analysis of Slotted ALOHA in Cognitive Radios

인지무선통신 환경에서 슬롯-알로하 기법의 전송 효율 분석

  • Wang, Hanho (Dept. of Information & Communication Engineering, Sangmyung University) ;
  • Woo, Choongchae (Dept. of Electrical Engineering, Hanseo University)
  • Received : 2014.09.04
  • Accepted : 2014.12.18
  • Published : 2015.03.01
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Abstract

In cognitive radios, exponentially distributed idle period(EIP) is considered in this paper. In the EIP case, durations of idle periods are be limited and varied by primary traffic arrivals. Accordingly, we first analyze the idle period utilization which can be achieved by the slotted ALOHA in cognitive radio communications. The idle period utilization is a newly defined performance metric to measure the transmission performance of the secondary network as effective time durations utilized for successful secondary transmissions in an idle period. Then, the idle period utilization is maximized through controlling the data transmission time. All technical processes are mathematically analyzed and expressed as closed form solutions.

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References

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