NDLI: Efficient pre-equalisation strategies for the downlink of a multi-carrier code division multiple-access wireless network

Content Provider	IET Digital Library
Author	Delgado, Daniel Ulises Campos Rivera, Jose Martin Luna Gutierrez, Carlos A.
Abstract	In this study, the problem of optimal synthesis of pre-equalisation factors for a multi-carrier code division multiple-access wireless network is studied under different quality of service (QoS) restrictions and performance objectives. The downlink is particularly addressed, where the QoS is evaluated by the signal-to-interference-noise ratio (SINR) after signal detection by matched filtering. First, the minimum energy formulation under inequality QoS constraints is analysed, and it was concluded that the optimal performance is always achieved at the lower bounds. Next, the minimisation of the peak magnitude of the pre-equalisation factors was addressed by an optimal synthesis scheme through the infinity norm, where a linear programming strategy is proposed by using an upper bound. Finally, by combining the minimum energy and minimum peak strategies, the minimisation of an upper bound on the peak-to-average-power ratio (PAPR) is suggested, which can be solved through quadratic programming by incorporating the QoS constraints. The new synthesis schemes take into account two important transmitter-based properties: peak magnitude and PAPR. These ideas were extensively validated in simulation, where the synthesis schemes were compared by Monte Carlo tests at different load and noise levels, and objective SINRs.
Starting Page	2074
Ending Page	2084
Page Count	11
ISSN	17518628
Volume Number	8
e-ISSN	17518636
Issue Number	Issue 12, Aug (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/8/12
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2013.0722
Journal	IET Communications
Publisher Date	2014-07-23
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Code Division Multiple Access Communication Channel Equalisation And Identification Equaliser Inequality QoS Constraint Linear Programming Linear Programming Strategy Matched Filtering Monte Carlo Method Monte Carlo Tests Multicarrier Code Division Multiple-access Wireless Network Multiple Access Communication Noise Levels Optimal Synthesis Optimisation Technique Peak-to-average-power Ratio Pre-equalisation Factors Pre-equalisation Strategy QoS Restrictions Quadratic Programming Quality of Service Radio Link And Equipment Radio Network Signal Detection Signal-to-interference-noise Ratio Transmitter-based Property
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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