Energy Minimization in OFDMA Downlink Systems: A Sequential Linear Assignment Algorithm for Resource Allocation

Energy Minimization in OFDMA Downlink Systems: A Sequential Linear Assignment Algorithm for Resource Allocation
Title:
Energy Minimization in OFDMA Downlink Systems: A Sequential Linear Assignment Algorithm for Resource Allocation
Other Titles:
IEEE Wireless Communications Letters
Keywords:
Publication Date:
20 August 2012
Citation:
Jingon Joung; Chin Keong Ho; Peng Hui Tan; Sumei Sun, "Energy Minimization in OFDMA Downlink Systems: A Sequential Linear Assignment Algorithm for Resource Allocation," Wireless Communications Letters, IEEE , vol.1, no.4, pp.300,303, August 2012, doi: 10.1109/WCL.2012.042512.120066
Abstract:
We propose a sequential linear assignment algorithm (SLAA) for resource allocation of OFDMA systems consisting of M users and N (N > M) resource blocks, with the aim of achieving near optimal energy consumption with polynomial complexity. The proposed SLAA allocates subchannels through a linear assignment algorithm (LAA), sequentially; thus, it requires O(MN^2(N - M)^2) complexity. From numerical results, the required power from the proposed assignment is observed to be within around 0.4 % of the lower bound of minimum possible power required to achieve the same target rates.
License type:
PublisherCopyrights
Funding Info:
Description:
ISSN:
2162-2337
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