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Special Graduate Schools Graduate School of Information and Communication Technology Department of Information and Communication 3. Theses(Master)

W-PAN에서의 채널 자원 재사용을 위한 MAC 프로토콜

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dc.contributor.advisor林在成-
dc.contributor.author권의혁-
dc.date.accessioned2018-11-14T06:30:17Z-
dc.date.available2018-11-14T06:30:17Z-
dc.date.issued2005-
dc.identifier.other773-
dc.identifier.urihttps://dspace.ajou.ac.kr/handle/2018.oak/14700-
dc.description학위논문(석사)--亞洲大學校 情報通信專門大學院 :정보통신공학과,2005.-
dc.description.tableofcontentsContents Chapter 1. Introduction = 1 Chapter 2. An Idle-Timeslot Reuse scheme for High-Rate Wireless Personal Area Networks = 3 2.1 Introduction = 3 2.2 Idle-Timeslot Problem = 6 2.3 Idle-Timeslot Reuse Scheme = 8 2.3.1 Idle-Timeslot Detection = 9 2.3.2 Idle-Timeslot Cancellation = 11 2.3.3 Idle-Timeslot Reuse = 12 2.4 Idle-Timeslot Reuse Gain Analysis = 14 2.5 Performance Evaluation = 17 2.5.1 Simulation Model = 17 2.5.2 Simulation Results = 18 Chapter 3. Virtual Slot Multiple Access for Wireless Personal Area Networks = 25 3.1 Introduction = 25 3.2 Virtual Slot Multiple Access (VSMA) Scheme = 26 3.3 Performance Evaluation = 28 3.3.1 Simulation Results for Low-Rate WPAN Environment = 28 3.3.2 Simulation Results for High-Rate WPAN Environment = 33 3.4 Numerical Analysis = 36 3.4.1 Markov Modeling for Multi-frame TDMA = 36 3.4.2 VSMA Throughput Analysis = 38 Chapter 4. Conclusion = 41 References = 43-
dc.language.isoeng-
dc.publisherThe Graduate School, Ajou University-
dc.rights아주대학교 논문은 저작권에 의해 보호받습니다.-
dc.titleW-PAN에서의 채널 자원 재사용을 위한 MAC 프로토콜-
dc.title.alternativeKwon, Eui hyeok-
dc.typeThesis-
dc.contributor.affiliation아주대학교 정보통신전문대학원-
dc.contributor.alternativeNameKwon, Eui hyeok-
dc.contributor.department정보통신전문대학원 정보통신공학과-
dc.date.awarded2005. 8-
dc.description.degreeMaster-
dc.identifier.localId564782-
dc.identifier.urlhttp://dcoll.ajou.ac.kr:9080/dcollection/jsp/common/DcLoOrgPer.jsp?sItemId=000000000773-
dc.subject.keywordW-PAN-
dc.description.alternativeAbstractTDMA scheme has an intrinsic problem that cannot allocate optimal length of timeslot to each station for burst traffic services, which would waste lots of timeslots especially in the multi-frame TDMA systems that send multiple frames within one timeslot. If the base station detects the existence of idle timeslot, it could inform other stations of the occurrence of idle timeslot so that the idle timeslot can be reused by other stations. Using this proposed scheme, the stations can efficiently utilize timeslots without loss even through the burst traffic environments. However, there are significant overheads for reusing idle timeslot explicitly. In order to reduce the reuse overheads, I propose a new hybrid multiple access scheme based on both TDMA and CSMA. A TDM timeslot virtually allocated for a specific station can be accessed by other stations using CSMA. Through the ns-2 simulations, we quantify the performance of the idle timeslot reusing scheme in both environments of real-time multimedia traffic and high data rate traffic. To verify throughput gain of proposed protocol, I used bulk server queueing system for modeling the multi-frame TDMA and calculated throughput gain by deriving simple probability function. Through the comparison between numerical analysis and NS-2 simulation, we can make the similar results for the normalized throughput.-
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