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무선 환경 하에서 Slotted ALOHA 방식의 다중채널 경쟁에 대한 지연시간분석

A delay analysis of multi-access protocol under wireless network

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주제분류산업공학

초록

Abstract

Slotted ALOHA(S-ALOHA) is widely used in local wireless network. We analyze the performance of contention-based model in wireless LAN using S-ALOHA protocol. We analyze the performance of binary exponential backoff (BEB) algorithm under the slotted ALOHA protocol: whenever a node's message which tries to reserve a channel is involved in a collision for the th time, it chooses one of the next frames with equal probability and attempts the reservation again. We derive the expected access delay and throughput which is defined as the expected number of messages that reserve a channel in a frame. A simulation study is performed to verify our method.

참고문헌 (7)

  1. "Performance of an Exponential Backoff for Slotted-ALOHA Protocol in Local Wireless Environment", 44(3), pp.470~479 (1995)
  2. "Analysis of the stability and Performance of Exponential Backoff", 3, pp.1754~1759 (2003)
  3. "Analysis and stability considerations in a reservation multiaccess system", com-31(5), pp.684~692 (1983)
  4. "Distributed packet switching for local computer network", 19, pp.395~404
  5. "IEEE standard for wireless LAN medium access control and physical layer specifications" (1997)
  6. "Ultimate instability of exponential back-off protocol for acknowledgement-based transmission control of random access communication channels", 33(2), pp.219~213
  7. "Stability of binary exponential backoff", 35(2), pp.579~602 (1988)

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