Efficient coupled PHY and MAC use of physical bursts by ARQ-enabled connections in WiMAX/IEEE 802.16e networks |
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| Institution: | 1. Department of Computer Science, 1 University St., Netanya Academic College, Netanya, 42365, Israel;2. Computer Science Department, Haifa University, Haifa, Israel;3. Lantiq, 13 Zarchin St., Ra’anana, 43662, Israel;1. Broadband Wireless Networking (BWN) Laboratory, School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States;2. Department of Electrical Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, United States;1. Key Laboratory of Intelligent Perception and Image Understanding of Ministry of Education of China, Xidian University, Xi’an 710071, China;2. College of Science, Inner Mongolia University of Technology, Inner Mongolia 010051, China;1. Department of Electrical and Computer Engineering, Texas A&M University at Qatar, Doha, Qatar;2. Department of Electrical and Computer Engineering, University of Manitoba, Canada;3. Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, United States;4. Computer, Electrical, and Mathematical Science and Engineering (CEMSE) Division, King Abdullah University of Science and Technology, Saudi Arabia;1. University of Cassino and Lazio Meridionale, via G. Di Biasio, 43, 03043 Cassino (FR), Italy;2. CNIT Research Unit, Viale G.P. Usberti, 181/A Pal.3, 43124 Parma (PR), Italy;3. University of Parma, Strada Dell’Università, 12, 43100 Parma (PR), Italy;1. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, China;2. College of Electronic and Communication Engineering, Tianjin Normal University, China |
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| Abstract: | In this paper we address an aspect of the mutual influence between the PHY layer budding blocks (FEC Blocks) and the MAC level allocations in the Uplink and Downlink of IEEE 802.16e/WiMAX networks. In these networks it is possible to transmit MAC level frames, denoted MAC PDUs, such that a PDU contains an integral number of fixed size Data Blocks. PDUs are transmitted over PHY Bursts, which are divided into FEC Blocks. We suggest several algorithms to compute the best way to define PDUs in a Burst in order to maximize several performance criteria. We also give guidelines on how to choose the best Modulation/Coding Scheme (MCS) to use in the Burst, given the SNR of the channel and the performance criteria. |
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| Keywords: | 802 16e WiMAX ARQ-connections Burst FEC Scheduling |
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