NDLI: Capacity region of MISO broadcast channel with SWIPT

Content Provider	IEEE Xplore Digital Library
Author	Shixin Luo Jie Xu Teng Joon Lim Rui Zhang
Copyright Year	2015
Description	Author affiliation: ECE Dept., Nat. Univ. of Singapore, Singapore, Singapore (Shixin Luo; Jie Xu; Teng Joon Lim; Rui Zhang)
Abstract	This paper studies a multiple-input single-output (MISO) broadcast channel (BC) featuring simultaneous wireless information and power transfer (SWIPT), where a multi-antenna access point (AP) delivers both information and energy via radio signals to multiple single-antenna receivers simultaneously, and each receiver implements either information decoding (ID) or energy harvesting (EH). We characterize the capacity region for ID receivers under given energy requirements for EH receivers, by solving a sequence of weighted sum-rate (WSR) maximization (WSRMax) problems subject to a maximum sum-power constraint for the AP, and a set of minimum harvested power constraints for individual EH receivers. The problem corresponds to a new form of WSRMax problem in MISO-BC with combined maximum and minimum linear transmit covariance constraints (MaxLTCCs and MinLTCCs), which has not been addressed in the literature and is challenging to solve. By extending the general BC-multiple access channel (MAC) duality, which is only applicable to WSRMax problems with MaxLTCCs, and applying the ellipsoid method, we propose an efficient algorithm to solve this problem globally optimally. Numerical results are presented to validate our proposed algorithm.
Starting Page	4235
Ending Page	4240
File Size	209412
Page Count	6
File Format	PDF
e-ISBN	9781467364324
DOI	10.1109/ICC.2015.7248988
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-08
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Receivers Covariance matrices Silicon Ellipsoids Wireless communication Null space Energy exchange
Content Type	Text
Resource Type	Article

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