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Packet scheduling for AMC-based OFDMA wireless communication systems

dc.contributor.advisorZhiwei Mao
dc.contributor.authorZhang, Bai
dc.date.accessioned2017-06-08T13:27:23Z
dc.date.available2017-06-08T13:27:23Z
dc.date.created2008
dc.date.issued2008
dc.identifier.urihttp://knowledgecommons.lakeheadu.ca/handle/2453/3911
dc.description.abstractIn this thesis, we propose a basic priority and fairness (BPF) and a modified priority and fairness (MPF) based packet scheduling algorithms for adaptive modulation and coding (AMC) scheme based orthogonal frequency division multiple access (OFDMA) wireless communication systems supporting both real time (RT) and non-real time (NRT) traffics. In the AMC based OFDMA systems considered in this thesis, multiple access is achieved by assigning subchannels, each of which consists of a set of subcarriers, to individual users, and the modulation and coding scheme on each subchannel is determined adaptively according to the time-varying channel conditions. In the proposed packet scheduling algorithms, various traffics are transmitted in a sequence determined by their priorities on each subchannel, jointly considering the fairness among users and subchannels. Simulation results show that the proposed algorithms are able to satisfy various quality of service (QoS) requirements, like packet loss rate, delay, or throughput, for a variety of RT and NRT traffics such as voice, video, WWW and email. Also, the proposed BPF and MPF packet scheduling algorithms can support more users than some existing packet scheduling algorithms under the same QoS requirements.
dc.language.isoen_US
dc.subjectWireless communication systems
dc.subjectOrthogonal frequency division multiplexing
dc.titlePacket scheduling for AMC-based OFDMA wireless communication systems
dc.typeThesis
etd.degree.nameMaster of Science
etd.degree.levelMaster
etd.degree.disciplineEngineering : Control
etd.degree.grantorLakehead University


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