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Distributed probabilistic-data-association-based soft reception employing base station cooperation in MIMO-aided multiuser multicell systems

Yang, Shaoshi, Lv, Tiejun, Maunder, Robert G and Hanzo, Lajos (2011) Distributed probabilistic-data-association-based soft reception employing base station cooperation in MIMO-aided multiuser multicell systems IEEE Transactions on Vehicular Technology, 60, (7), pp. 3532-3538. (doi:10.1109/TVT.2011.2159822).

Record type: Article

Abstract

Intercell cochannel interference (CCI) mitigation is investigated in the context of cellular systems relying on dense frequency reuse (FR). A distributed base-station (BS)-cooperation-aided soft reception scheme using the probabilistic data association (PDA) algorithm and soft combining (SC) is proposed for the uplink of multiuser multicell MIMO systems. The realistic 19-cell hexagonal cellular model relying on unity FR is considered, where both the BSs and the mobile stations (MSs) are equipped with multiple antennas. Local-cooperation-based message passing is used, instead of a global message passing chain for the sake of reducing the backhaul traffic. The PDA algorithm is employed as a low-complexity solution for producing soft information, which facilitates the employment of SC at the individual BSs to generate the final soft decision metric. Our simulations and analysis demonstrate that, despite its low additional complexity and backhaul traffic, the proposed distributed PDA-aided SC (DPDA-SC) reception scheme significantly outperforms the conventional noncooperative benchmarkers. Furthermore, since only the index of the possible discrete value of the quantized converged soft information has to be exchanged for SC in practice, the proposed DPDA-SC scheme is relatively robust to the quantization errors of the soft information exchanged. As a beneficial result, the backhaul traffic is dramatically reduced at negligible performance degradation.

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Published date: September 2011
Keywords: base sation (BS) cooperation, co-channel interference, cci, distributed MIMO, message-passing, multi-cell processing, probabilistic data association, pda, soft combining
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 272208
URI: http://eprints.soton.ac.uk/id/eprint/272208
ISSN: 0018-9545
PURE UUID: 399d7341-0b89-4ae5-b1a8-e6bc81ef742e
ORCID for Robert G Maunder: ORCID iD orcid.org/0000-0002-7944-2615

Catalogue record

Date deposited: 18 Apr 2011 12:36
Last modified: 18 Jul 2017 06:33

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Contributors

Author: Shaoshi Yang
Author: Tiejun Lv
Author: Robert G Maunder ORCID iD
Author: Lajos Hanzo

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