Distributed MIMO Antenna Systems for Enhanced Communication Efficiency
Summary
Distributed multiple-input multiple-output (MIMO) antenna systems represent an evolution of conventional MIMO by dispersing antenna elements across a geographic area rather than concentrating them at a single base station. This spatially distributed architecture delivers improved coverage, enhanced spectral efficiency and resilience to shadowing and fading. By coordinating joint transmission and reception among numerous remote antenna units, user-centric clustering and coherent processing become feasible, leading to uniform service quality and mitigation of cell-edge degradation. Key challenges include the design of scalable fronthaul and backhaul networks, precise channel estimation in the presence of pilot contamination and dynamic resource allocation to balance energy consumption against throughput. Practical implementations span 5G and emerging 6G networks, where distributed MIMO underpins ultra-reliable low-latency communications, massive machine-type communications and integrated sensing and communication services.
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Distributed MIMO Antenna Systems for Enhanced Communication Efficiency publication trend
The graph below shows the total number of articles in distributed mimo antenna systems for enhanced communication efficiency across all publications each year (not limited to Nature Index journals).
Technical terms
Distributed MIMO: A multi-antenna architecture where antenna elements are geographically separated and jointly processed to enhance coverage and spatial diversity.
Cell-free architecture: A network design in which all access points cooperatively serve each user without fixed cell boundaries, ensuring uniform service quality.
Pilot contamination: Interference in channel estimation caused by reusing non-orthogonal pilot sequences across spatially distributed transmitters.
Spectral efficiency: The rate of information transfer per unit of bandwidth, typically measured in bits per second per Hertz.
Backhaul capacity: The data-carrying capability of links connecting distributed antenna units or access points to central processing units.
Multi-carrier transmission: A technique that divides available bandwidth into multiple sub-bands for parallel data transmission, improving robustness and resource flexibility.
References
- Energy-Efficient Clustered Cell-Free Networking With Access Point Selection. IEEE Open Journal of the Communications Society (2024).
- Joint User Scheduling and Resource Allocation in Distributed MIMO Systems with Multi-Carriers. Electronics (2022).
- A Pilot Allocation Algorithm Based on Coalitional Game Theory for Distributed MIMO Systems. IEEE Access (2019).
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