Power-Efficient Resource Allocation in Massive MIMO Aided Cloud RANs
Nahid Amani, Saeedeh Parsaeefard, Hassan Taheri, Hossein Pedram

TL;DR
This paper proposes a power-efficient resource allocation scheme for massive MIMO aided C-RANs, optimizing power and resource distribution to reduce total transmission power while maintaining user rate requirements.
Contribution
It introduces an iterative optimization algorithm combining CGP and SCA to effectively minimize power consumption in C-RANs with massive MIMO.
Findings
Significant reduction in total transmission power achieved.
Effective switching off of under-utilized RRHs.
Enhanced power efficiency in C-RAN architecture.
Abstract
This paper considers the power-efficient resource allocation problem in a cloud radio access network (C-RAN). The C-RAN architecture consists of a set of base-band units (BBUs) which are connected to a set of radio remote heads (RRHs) equipped with massive multiple input multiple output (MIMO), via fronthaul links with limited capacity. We formulate the power-efficient optimization problem in C-RANs as a joint resource allocation problem in order to jointly allocate the RRH and transmit power to each user, and fronthaul links and BBUs assign to active RRHs while satisfying the minimum required rate of each user. To solve this non-convex optimization problem we suggest iterative algorithm with two-step based on the complementary geometric programming (CGP) and the successive convex approximation (SCA). The simulation results indicate that our proposed scheme can significantly reduce the…
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Taxonomy
TopicsAdvanced MIMO Systems Optimization · Cooperative Communication and Network Coding · Advanced Wireless Communication Technologies
