물류 정보시스템을 위한 IEEE802.11 무선랜 시스템에서 유전자 알고리듬을 이용한 Dynamic Contention Window 제어 알고리듬

• 영문명: Dynamic Contention Window Control Algorithm Using Genetic Algorithm in IEEE 802.11 Wireless LAN Systems for Logistics Information Systems
• 발행기관: 한국산업경영시스템학회
• 저자명: 이상헌(Sang-Heon Lee) 최우용(Woo-Yong Choi) 이상완(Sang-Wan Lee)
• 간행물 정보: 『산업경영시스템학회지』제32권 제3호, 10~19쪽, 전체 10쪽
• 주제분류: 공학 > 산업공학
• 파일형태: PDF
• 발행일자: 2009.09.30

영문 초록

Wireless LAN systems have been widely implemented for supporting the sireless internet services especially in the hotspot areas such as hospitals, homes, conference rooms, and so on. Compared with wired LAN systems, wireless LAN systems have the advantages of the users mobility support and low implementation and maintenance costs. IEEE 802.11 wireless LAN sysetms employ the backoff algorithm to avoid contentions among STAs when two or more STAs attempt to transmit their data frames simultaneously. The MAC efficiency can be improved if the CW values are adaptively changed according to the channel state of IEEE 802.11 wireless LANs. In this paper, a dynamic contention window control algorithm is proposed using the genetic algorithm to improve the MAC throughput of IEEE 802.11 wireless LANs.

키워드

IEEE 802.11 WLAN Dynamic Contention Window Genetic Algorithm