Graduate School and Research Center in Digital Sciences

Detection using block QR decomposition for MIMO hetNets

Thomas, Robin; Knopp, Raymond; Maharaj, Sunil; Cottatellucci, Laura

ASILOMAR 2014, 48th Asilomar Conference on Signals, Systems, and Computers, November 2-5, 2014, Pacific Grove, CA, USA

Interference management between uncoordinated eNBs and UEs is a crucial aspect of Heterogeneous Networks in LTE, especially if the interference can be exploited at the receiver. In this paper, a novel preprocessing Block QR decomposition technique is proposed for a low-complexity maxlog- MAP receiver, for interference detection in a 4 × 4 HetNet scenario. The authors show that for various SNR, the proposed receiver detection scheme has minimal mutual information loss for Gaussian signals for the 4 × 4 and 8 × 8 case. The proposed preprocessing method is implemented in an LTE simulation test bench with practical codes and compared with a brute-force search max-log-MAP algorithm.

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Title:Detection using block QR decomposition for MIMO hetNets
City:Pacific Grove
Department:Communication systems
Eurecom ref:4472
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Bibtex: @inproceedings{EURECOM+4472, doi = {}, year = {2014}, title = {{D}etection using block {QR} decomposition for {MIMO} het{N}ets}, author = {{T}homas, {R}obin and {K}nopp, {R}aymond and {M}aharaj, {S}unil and {C}ottatellucci, {L}aura}, booktitle = {{ASILOMAR} 2014, 48th {A}silomar {C}onference on {S}ignals, {S}ystems, and {C}omputers, {N}ovember 2-5, 2014, {P}acific {G}rove, {CA}, {USA} }, address = {{P}acific {G}rove, {UNITED} {STATES}}, month = {11}, url = {} }
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