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Low-complexity iterative quantum multi-user detection in SDMA systems

Botsinis, Panagiotis, Ng, Soon Xin and Hanzo, Lajos (2014) Low-complexity iterative quantum multi-user detection in SDMA systems At IEEE International Conference on Communications, Australia. 10 - 14 Jun 2014. 6 pp.

Record type: Conference or Workshop Item (Paper)


The potentially excessive complexity of the Maximum Likelihood Multi-User Detector (ML MUD) in large-scale Spatial Division Multiple Access (SDMA) systems dictates the employment of low-complexity sub-optimal MUDs in the context of conventional systems. However, this limitation was circumvented by the recently proposed Durr-Høyer Algorithm (DHA)-aided Quantum Weighted Sum Algorithm (QWSA)-based Quantum Multi-User Detector (QMUD) employed for performing optimal ML iterative detection in SDMA systems. Focusing our attention on the QWSA, we analyse the QMUD and the evolution of the quantum system with the aid of a simple SDMA uplink scenario. We characterize the performance of the DHA-QWSA QMUD advocated, which is capable of matching the performance of the ML MUD both in terms of its EXIT charts and BER curves.

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Accepted/In Press date: 10 June 2014
Venue - Dates: IEEE International Conference on Communications, Australia, 2014-06-10 - 2014-06-14
Keywords: computational complexity, quantum computing, quantum search algorithms, spatial division multiple access
Organisations: Southampton Wireless Group


Local EPrints ID: 362236
PURE UUID: 7bdd4ef3-2fe2-4d88-ab5c-8ae994196935

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Date deposited: 18 Feb 2014 16:21
Last modified: 18 Jul 2017 02:54

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Author: Panagiotis Botsinis
Author: Soon Xin Ng
Author: Lajos Hanzo

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