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), 3532-3538. (doi:10.1109/TVT.2011.2159822).
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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.
|Keywords:||base sation (BS) cooperation, co-channel interference, cci, distributed MIMO, message-passing, multi-cell processing, probabilistic data association, pda, soft combining|
|Subjects:||Q Science > QA Mathematics > QA75 Electronic computers. Computer science|
|Divisions:||Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
|Date Deposited:||18 Apr 2011 12:36|
|Last Modified:||27 May 2013 01:39|
|Further Information:||Google Scholar|
|ISI Citation Count:||0|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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