Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/118898
Title: Design of medium access control techniques for cooperative wireless networks
Authors: WANG YU
Keywords: medium access control, link scheduling, cooperative, wireless networks, protocol design, relay assignment
Issue Date: 26-Jan-2015
Source: WANG YU (2015-01-26). Design of medium access control techniques for cooperative wireless networks. ScholarBank@NUS Repository.
Abstract: This thesis studies a number of topics in medium access control for both centralized and distributed cooperative networks. First, we study the algorithms for opportunistic scheduling with two-hop cooperative transmission in cellular networks. The scenarios where single user equipment may be concurrently served by multiple mobile terminals are studied in cellular networks. The optimal cooperative scheduling algorithm is obtained under long-term fairness constraints. Second, we extend to multi-hop cooperative transmission in 60 GHz wireless personal area networks. We propose the optimal cooperative scheduling algorithm in terms of throughput for scenarios with and without bursty demand of data. Proposed strategy jointly manages relay assignment and link scheduling for studied networks. The results demonstrate that cooperative strategy outperforms non-cooperative strategy significantly. Third, we investigate cooperation in designing medium access control protocol for directional multi-channel ad hoc networks, where terminals contend for bandwidth resources. Different from previous two topics, cooperation is no longer manifested in relaying data frames for other terminals. In this topic, cooperation denotes that terminals share channel usage information. The results demonstrate that cooperation effectively solves hidden terminal and deafness problems and improve throughput of studied networks significantly.
URI: http://scholarbank.nus.edu.sg/handle/10635/118898
Appears in Collections:Ph.D Theses (Open)

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