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Adaptive Reduced Feedback Links for Distributed Power Allocation in Multicell MISO-OFDMA Networks

Abstract : For multi-antenna Orthogonal Frequency-Division Multiple Access (OFDMA) based multicell networks, the channel state information (CSI) of all users is required to share among base stations in order to perform distributed power allocation. However, the amount of feedback increases with the number of users, base stations, subcarriers and antennas. Therefore, it is important to perform a selection at the user side to reduce the feedback load and the complexity of resource allocation. In this letter, we propose adaptive reduced feedback links by choosing the users based on their approximate signal to interference noise ratio (SINR) and their locations in the cell to satisfy users' rate constraints. We illustrate the performance results of reduced feedback links by employing distributed resource allocation with link adaptation. Index Terms-Multicell networks,reduced feedback, power minimization, OFDMA, multiple antennas.
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https://hal.archives-ouvertes.fr/hal-02446795
Contributor : Mylène Pischella <>
Submitted on : Monday, March 23, 2020 - 1:16:52 PM
Last modification on : Monday, March 23, 2020 - 1:16:53 PM

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Berna Ozbek, Didier Le Ruyet, Mylène Pischella. Adaptive Reduced Feedback Links for Distributed Power Allocation in Multicell MISO-OFDMA Networks. IEEE wireless communications letters, IEEE comsoc, 2014, 3 (2), pp.141-144. ⟨10.1109/WCL.2013.120513.130743⟩. ⟨hal-02446795⟩

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