Flow Control and Bandwidth Allocation Algorithms for LTE-Advanced Relay Networks
碩士 === 國立臺灣科技大學 === 電子工程系 === 99 === Relay network is one of the candidates for extending coverage or enhancing throughput of the next generation cellular systems. In LTE-A relay networks, the based station (BS) does not know the channel quality of each mobile station (MS) served by its subordinate...
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| Format: | Others |
| Language: | en_US |
| Published: |
2011
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| Online Access: | http://ndltd.ncl.edu.tw/handle/493k37 |
| Summary: | 碩士 === 國立臺灣科技大學 === 電子工程系 === 99 === Relay network is one of the candidates for extending coverage or enhancing throughput of the next generation cellular systems. In LTE-A relay networks, the based station (BS) does not know the channel quality of each mobile station (MS) served by its subordinate relay nodes (RNs). At the RN, the queues reserved for its serving MSs may have buffer overflow and/or buffer underflow problems due to the mismatch of the data rates between the access link and the relay link. In this paper, an analytical model is presented to derive the buffer-overflow and buffer-underflow probabilities for MSs served by an RN. Several flow control and bandwidth allocation algorithms are then proposed to deal with the buffer overflow/underflow problems. Simulation is then conducted to verify the accuracy of the analytical model and the effectiveness of the proposed algorithms.
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