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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국데이터전략학회 Journal of Information Technology Applications & Management Journal of Information Technology Applications & Management Vol.15, No.1
- 발행연도
- 2008.3
- 수록면
- 261 - 270 (10page)
이용수
초록· 키워드
오류제보하기
Wireless Mesh Networks (WMNs) have emerged as one of the new hot topics in wireless communications. WMNs have been suggested for use in situations in which some or all of the users are mobile or are located in inaccessible environments. Unconstrained transmission in a WMN may lead to the time overlap of two or more packet receptions, called collisions or interferences, resulting in damaged useless packets at the destination. There are two types of collisions; primary collision, due to the transmission of the stations which can hear each other, and hidden terminal collision, when stations outside the hearing range of each other transmit to the same receiving stations. For a WMN, direct collisions can be minimized by short propagation and carrier sense times. Thus, in this paper we only consider hidden terminal collision while neglecting direct collisions.
To reduce or eliminate hidden terminal collision, code division multiple access (CDMA) protocols have been introduced. The collision-free property is guaranteed by the use of spread spectrum communication techniques and the proper assignment of orthogonal codes. Such codes share the fixed channel capacity allocated to the network in the design stage. Thus, it is very important to minimize the number of codes while achieving a proper transmission quality level in CDMA WMNs. In this paper, an efficient heuristic code assignment algorithm for eliminating hidden terminal collision in CDMA WMNs with general topology.
To reduce or eliminate hidden terminal collision, code division multiple access (CDMA) protocols have been introduced. The collision-free property is guaranteed by the use of spread spectrum communication techniques and the proper assignment of orthogonal codes. Such codes share the fixed channel capacity allocated to the network in the design stage. Thus, it is very important to minimize the number of codes while achieving a proper transmission quality level in CDMA WMNs. In this paper, an efficient heuristic code assignment algorithm for eliminating hidden terminal collision in CDMA WMNs with general topology.
목차
Abstract
1. Introduction
2. Problem Description and Modeling
3. Centralized Algorithm
4. Simulation results
5. Conclusion
References
저자소개
참고문헌 (11)
참고문헌 신청
1. [단행본] - Alicherry, M. / 2005 / Joint Channel Assignment and Routing for Throughput Optimization in Multi-Radio Wireless Mesh Networks / Proc.ACM Mobicom : 58 ~ 72
2. [학술지(정기간행물)] - Bertossi, A. / 1995 / Code Assignment for Hidden Terminal Interference Avoidance in Multihop Packet Radio Networks / IEEE/ACM Transactions on Networking 3 : 441 ~ 449
3. [학술지(정기간행물)] - Brelaz, D. / 1979 / New Methods to Color the Vertices of a Graph / Communications of the ACM 22 (4)
4. [학술지(정기간행물)] - Brewer, E. / 2005 / The Case for Technology for Developing Regions / IEEE Computer 38 (6) : 25 ~ 38
5. [학술지(정기간행물)] - Cidon, I. / 1989 / Distributed Assignment Algorithms for Multihop Packet Radio Networks / IEEE Transactions on Computer 38 : 1353 ~ 1360
2. [학술지(정기간행물)] - Bertossi, A. / 1995 / Code Assignment for Hidden Terminal Interference Avoidance in Multihop Packet Radio Networks / IEEE/ACM Transactions on Networking 3 : 441 ~ 449
3. [학술지(정기간행물)] - Brelaz, D. / 1979 / New Methods to Color the Vertices of a Graph / Communications of the ACM 22 (4)
4. [학술지(정기간행물)] - Brewer, E. / 2005 / The Case for Technology for Developing Regions / IEEE Computer 38 (6) : 25 ~ 38
5. [학술지(정기간행물)] - Cidon, I. / 1989 / Distributed Assignment Algorithms for Multihop Packet Radio Networks / IEEE Transactions on Computer 38 : 1353 ~ 1360
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