Reference : Cooperative transmission in cloud RAN considering fronthaul capacity and cloud proces...
Scientific congresses, symposiums and conference proceedings : Paper published in a book
Engineering, computing & technology : Electrical & electronics engineering
Security, Reliability and Trust
http://hdl.handle.net/10993/47090
Cooperative transmission in cloud RAN considering fronthaul capacity and cloud processing constraints
English
Ha, Vu Nguyen mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom >]
Le, Long Bao []
Dao, Ngoc-Dung []
6-Sep-2014
2014 IEEE Wireless Communications and Networking Conference (WCNC) proceedings
IEEE
Yes
International
978-1-4799-3083-8
Istanbul
Turkey
2014 IEEE Wireless Communications and Networking Conference (WCNC)
from 06-09-2014 to 09-09-2014
[en] Cloud radio access network (C-RAN) ; beamforming ; power minimization
[en] We investigate the cooperative transmission design for the cloud radio access network (C-RAN) considering fronthaul capacity and cloud processing constraints. Specifically, we consider the joint transmission scheme where the baseband signals and precoding vectors are processed and calculated by the cloud, which are delivered over the fronthaul links to the remote radio heads (RRHs) to form the RF signals for being transmitted to the users. We formulate the joint optimization problem for precoding design and allocation of RRHs, fronthaul capacity, and BBU processing resources to minimize the total transmission power subject to QoS constraints of the users. We present both optimal exhaustive search algorithm and two low-complexity algorithms to solve the resource allocation problem where the first one can achieve the Pareto optimality and the second one can determine an efficient solution with pretty low complexity. Numerical results confirm the excellent performance of the proposed low-complexity algorithms.
http://hdl.handle.net/10993/47090

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