NDLI: Throughput optimisation for energy harvesting transmitter with partial instantaneous channel state information and finite-alphabet inputs

Content Provider	IET Digital Library
Author	Zhu, Xiaodong Zeng, Weiliang Xiao, Chengshan
Abstract	Wireless communication systems with energy harvester are attracting much attention due to their ability to improve the system operation time. Extensive research has been carried out on how to maximise the sum of mutual information over multiple time slots (i.e. the throughput). However, most research focuses on the energy harvesting transmitter with Gaussian inputs and single antenna. This study considers the throughput maximisation problem for an energy harvesting transmitter with causal energy constraint over multiple-input multiple-output (MIMO) channels. Different from existing works, the authors consider the MIMO system with finite-alphabet inputs and partial instantaneous channel state information (CSI). Specifically, the transmitter knows the statistical CSI of the entire channel frame as well as the instantaneous CSI of current time slot. The precoder design in this scenario is an intractable optimisation problem with respect to multiple precoding matrices. The authors’ analysis shows that this difficult precoding problem can be equivalently transformed into a set of scalar optimisation subproblems with respect to the transmit power. To solve these subproblems, an efficient algorithm based on the dynamic programming is proposed. The authors analyse the performance of the proposed algorithm, and simulation results validate its effectiveness.
Starting Page	435
Ending Page	442
Page Count	8
ISSN	17518628
Volume Number	10
e-ISSN	17518636
Issue Number	Issue 4, Mar (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/10/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2015.0532
Journal	IET Communications
Publisher Date	2016-03-03
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Channel Frame Code CSI Dynamic Programming Energy Harvester Energy Harvesting Energy Harvesting Transmitter Finite Alphabet Input Gaussian Input Gaussian Processes Intractable Optimisation Problem Maximisation Problem MIMO Channel Multiple Precoding Matrix Multiple-input Multiple-output Channel Optimisation Technique Partial Instantaneous Channel State Information Precoder Design Precoding Radio Link And Equipment Radio Network Radio Transmitters Scalar Optimisation Subproblems Single Antenna Wireless Channel Wireless Communication System
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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