TY - GEN
T1 - Compressed cooperative reception for the uplink of C-RAN with wireless fronthaul
AU - Park, Seok Hwan
AU - Lee, Kyoung Jae
AU - Song, Changick
AU - Lee, Inkyu
N1 - Funding Information:
This work was supported by National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (MSIP) of Korea Government under Grants 2014R1A2A1A10049769, 2015R1C1A1A01051825, 2015R1C1A1A02036927, 2016R1C1B2011921 and 2017R1A2B3012316.
PY - 2017/11/14
Y1 - 2017/11/14
N2 - This work deals with a joint design of radio access and fronthaul links for the uplink of cloud radio access network (C-RAN) equipped with wireless fronthaul link. A conventional uplink system based on per-cell decode-and-forward (DF) relaying, in which the message sent by each user equipment (UE) is decoded by the closest remote radio head (RRH) and forwarded to a baseband processing unit (BBU) via wireless fronthaul link, is first reviewed. Since decoding at each RRH might be affected by the interference signals of the other UEs, we present a compress-and-forward (CF) based cooperative reception scheme whereby each RRH quantizes and compresses its received signal and transmits the quantization output to the BBU through the fronthaul link. For the both approaches based on the DF and CF relaying, we tackle the problem of maximizing the sum-rate of the UEs subject to the per-UE and per-RRH power constraints. Link-level simulation results are reported that validate the advantages of the CF-based cooperative scheme compared to the DF-based per-cell reception scheme.
AB - This work deals with a joint design of radio access and fronthaul links for the uplink of cloud radio access network (C-RAN) equipped with wireless fronthaul link. A conventional uplink system based on per-cell decode-and-forward (DF) relaying, in which the message sent by each user equipment (UE) is decoded by the closest remote radio head (RRH) and forwarded to a baseband processing unit (BBU) via wireless fronthaul link, is first reviewed. Since decoding at each RRH might be affected by the interference signals of the other UEs, we present a compress-and-forward (CF) based cooperative reception scheme whereby each RRH quantizes and compresses its received signal and transmits the quantization output to the BBU through the fronthaul link. For the both approaches based on the DF and CF relaying, we tackle the problem of maximizing the sum-rate of the UEs subject to the per-UE and per-RRH power constraints. Link-level simulation results are reported that validate the advantages of the CF-based cooperative scheme compared to the DF-based per-cell reception scheme.
KW - C-RAN
KW - compress-and-forward
KW - decode-and-forward
KW - wireless fronthaul
UR - http://www.scopus.com/inward/record.url?scp=85041443760&partnerID=8YFLogxK
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U2 - 10.1109/ISWCS.2017.8108112
DO - 10.1109/ISWCS.2017.8108112
M3 - Conference contribution
AN - SCOPUS:85041443760
T3 - Proceedings of the International Symposium on Wireless Communication Systems
SP - 211
EP - 215
BT - 2017 International Symposium on Wireless Communication Systems, ISWCS 2017
PB - VDE Verlag GmbH
T2 - 2017 International Symposium on Wireless Communication Systems, ISWCS 2017
Y2 - 28 August 2017 through 31 August 2017
ER -