TY - GEN
T1 - Comp transmission in cloud radio access networks
AU - Liu, Junyu
AU - Sheng, Min
AU - Quek, Tony Q.S.
AU - Li, Jiandong
N1 - Funding Information:
This work has been supported by National Natural Science Foundation of China (61231008, 61172079, 61201141, 61301176, 91338114), 111 Project (B08038), and 863 project (No.2014AA01A701).
Publisher Copyright:
© 2015 IEEE.
PY - 2015
Y1 - 2015
N2 - Coordinated multi-point (CoMP) is an efficient technique to increase cell-edge coverage probability and throughput in cloud radio access network (C- RAN). In this paper, we develop a tractable framework to analytically evaluate the performance of two typical CoMP schemes, namely, zero-forcing beamforming(ZFBF) and non-coherent joint transmission (NC-JT). Using the stochastic geometry based approach, we characterize the signal-to- interference ratio (SIR) distribution at a typical downlink user. Furthermore, we consider the effect of imperfect channel state information (CSI) on coverage probability of the typical user from the practical design perspective. It is observed that ZFBF can outperform NC-JT only when there is sufficient overhead to convey the quantized CSI. In summary, this work serves as a good rule of thumb to compare the effect of CoMP techniques in C-RAN.
AB - Coordinated multi-point (CoMP) is an efficient technique to increase cell-edge coverage probability and throughput in cloud radio access network (C- RAN). In this paper, we develop a tractable framework to analytically evaluate the performance of two typical CoMP schemes, namely, zero-forcing beamforming(ZFBF) and non-coherent joint transmission (NC-JT). Using the stochastic geometry based approach, we characterize the signal-to- interference ratio (SIR) distribution at a typical downlink user. Furthermore, we consider the effect of imperfect channel state information (CSI) on coverage probability of the typical user from the practical design perspective. It is observed that ZFBF can outperform NC-JT only when there is sufficient overhead to convey the quantized CSI. In summary, this work serves as a good rule of thumb to compare the effect of CoMP techniques in C-RAN.
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U2 - 10.1109/GLOCOMW.2015.7414099
DO - 10.1109/GLOCOMW.2015.7414099
M3 - Conference contribution
AN - SCOPUS:84971233964
T3 - 2015 IEEE Globecom Workshops, GC Wkshps 2015 - Proceedings
BT - 2015 IEEE Globecom Workshops, GC Wkshps 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE Globecom Workshops, GC Wkshps 2015
Y2 - 6 December 2015 through 10 December 2015
ER -