2014/03/19 by Emil Björnson, Michail Matthaiou, Björnson, Emil +3
Computer Science · Engineering · Mathematics · #Advanced MIMO Systems Optimization #Advanced Wireless Network Optimization #Cooperative Communication and Network Coding #FOS: Computer and information sciences #Information Theory (cs.IT) #cs.IT #math.IT
paper · pdf · doi:10.48550/arxiv.1403.4851
Published at International Symposium on Communications, Control, and Signal Processing (ISCCSP 2014), 4 pages, 3 figures. This version corrects an error related to Lemma 3
arxiv created 2014/03/19 · openalex publication_date 2014/03/19 · arxiv updated 2014/03/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Densification is a key to greater throughput in cellular networks. The full potential of coordinated multipoint (CoMP) can be realized by massive multiple-input multiple-output (MIMO) systems, where each base station (BS) has very many antennas. However, the improved throughput comes at the price of more infrastructure; hardware cost and circuit power consumption scale linearly/affinely with the number of antennas. In this paper, we show that one can make the circuit power increase with only the square root of the number of antennas by circuit-aware system design. To this end, we derive achievable user rates for a system model with hardware imperfections and show how the level of imperfections can be gradually increased while maintaining high throughput. The connection between this scaling law and the circuit power consumption is established for different circuits at the BS.