2022
DOI: 10.1109/twc.2021.3098447
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Joint Power Allocation and User Association Optimization for IRS-Assisted mmWave Systems

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Cited by 58 publications
(38 citation statements)
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“…When it comes to IRS-user association and mode selection, some essential practical factors to take into account include the user's QoS requirements, co-channel interference levels, channel condition, and deployment strategy [25]. Moreover, the associated BS might remain unchanged for a mobile user within a cell, but the associated IRS and communication mode might need to be adaptively adjusted.…”
Section: Networkmentioning
confidence: 99%
“…When it comes to IRS-user association and mode selection, some essential practical factors to take into account include the user's QoS requirements, co-channel interference levels, channel condition, and deployment strategy [25]. Moreover, the associated BS might remain unchanged for a mobile user within a cell, but the associated IRS and communication mode might need to be adaptively adjusted.…”
Section: Networkmentioning
confidence: 99%
“…In particular, IRS can be seen as an effective method to achieve hybrid BF/precoding since the analog phase shift can conduct by the reflection elements at the IRS. Recently, [30] studied the joint BF and user association optimization for IRSassisted mmWave multiuser MISO networks. Besides, [31] and [32] investigated the joint precoding and phase shifts design for IRS-assisted mmWave massive MIMO systems.…”
Section: Introductionmentioning
confidence: 99%
“…i according to(30); e) Calculate the Polak-Ribiere parameter t i+1 1 in (29); f) Compute the conjugate direction d i+1 by (31); g) i ← i + 1.…”
mentioning
confidence: 99%
“…In order to take advantage of the IRS mentioned above, extensive researches on deploying IRS in various wireless communication systems have been conducted to improve the performance under different metrics. By judiciously adjusting IRS elements, the reflected signals are intelligently elaborated to achieve performance improvement in terms of spectral efficiency [11], energy efficiency [12], transmit power [13], [14], sum-rate [15]- [17], etc., for single-user/multi-user MIMO/multi-input single-output (MISO) [11]- [16], wideband orthogonal frequency division multiplexing (OFDM) [17], or multi-cell systems [18]. In addition, researchers have explored the designs of IRS with low-resolution phase-shift [19] and phase error [20] or under imperfect channel state information (CSI) [21].…”
Section: Introductionmentioning
confidence: 99%