Reconfigurable multi-standard uplink MIMO receiver with partial interference cancellation

As HSPA/HSPA+ and LTE/LTE-A evolve in parallel, the reconfigurability of a receiver to support multiple standards has become more and more important, especially for small cells. In this paper, we first suggest a reconfigurable multistandard uplink MIMO receiver based on a frequency domain equalizer....

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Bibliographic Details
Main Authors: Bei Yin, Amiri, K., Cavallaro, J. R., Yuanbin Guo
Format: Conference Proceeding
Language:English
Subjects:
Complexity theory
Frequency domain analysis
Integrated circuits
Interference
MIMO
Receivers
Online Access:Request full text
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Summary:As HSPA/HSPA+ and LTE/LTE-A evolve in parallel, the reconfigurability of a receiver to support multiple standards has become more and more important, especially for small cells. In this paper, we first suggest a reconfigurable multistandard uplink MIMO receiver based on a frequency domain equalizer. Then, to improve the performance, we propose two low-complexity partial iterative interference cancellation (IC) schemes to deal with the residual inter-chip and inter-antenna interference in HSPA/HSPA+ and the residual inter-symbol and inter-antenna interference in LTE/LTE-A. Compared with a receiver consisting of separate HSPA/HSPA+ and LTE/LTE-A uplink receivers, this reconfigurable receiver can save up to 66.9% complexity. Moreover, the two partial IC schemes have negligible performance loss compared with full IC scheme. They can achieve 2 dB gains in both standards with only 15.2% additional complexity to no IC scheme.
ISSN:1550-3607
1938-1883
DOI:10.1109/ICC.2012.6363746