Please use this identifier to cite or link to this item:
http://hdl.handle.net/11144/3684
Title: | Efficient Transmitter and Receiver Designs for SC-FDMA Based Heterogeneous Networks Castanheira, D. ; Silva, A. ; Dinis, R. ; Gameiro, A. |
Authors: | Dinis, Rui Castanheira, Daniel Silva, Adão Gameiro, Atílio |
Keywords: | Heterogeneous Networks SC-FDMA Interference Alignment IB-DFE Quantization |
Issue Date: | 2015 |
Publisher: | IEEE Publisher |
Abstract: | In this manuscript, we consider the uplink of a single carrier frequency division multiple access (SC-FDMA) based system, where a set of small-cells coexist with a macro-cell using the same spectrum. To deal with both the inter-carrier interference (ICI) and inter-system interference we combine interference alignment (IA) precoding at the small-cell transmitters with iterative decision feedback equalization at the macroreceiver. The transmitter and receiver design is performed jointly, by considering both full-coordination and limited inter-system information exchange between macro and small-cells. At the small cells side, we assume that the access points are connected through a limited capacity backhaul network to a central unit, where the separation of a quantized version of the small-cell signals is performed. For this case the iterative feedback equalizer is designed by explicitly taking into account the impact of signal quantization. Moreover, a semi-analytical approach for the performance of the proposed schemes is provided. The results show that the proposed schemes are robust to both inter-system and inter-carrier interferences and thus are able to efficiently separate the macro and small cells spatial streams under limited information exchange. |
Peer Reviewed: | yes |
URI: | http://hdl.handle.net/11144/3684 |
metadata.dc.identifier.doi: | 10.1109/TCOMM.2015.2434383 |
ISSN: | 0090-6778 |
Publisher Version: | https://www.it.pt/Publications/PaperJournal/10417 |
Appears in Collections: | DCT - Artigos/Papers |
Files in This Item:
File | Description | Size | Format | |
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EFFICIENT.pdf | 183,63 kB | Adobe PDF | View/Open |
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