Unified Modeling and Performance Comparison for Cellular and Cell-Free Massive MIMO
CoRR（2024）
Abstract
Cell-free massive multi-input multi-output (MIMO) has recently gained a lot
of attention due to its high potential in sixth-generation (6G) wireless
systems. The goal of this paper is to first present a unified modeling for
massive MIMO, encompassing both cellular and cell-free architectures with a
variable number of antennas per access point. We derive signal transmission
models and achievable spectral efficiency in both the downlink and uplink using
zero-forcing and maximal-ratio schemes. We also provide performance comparisons
in terms of per-user and sum spectral efficiency.
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Key words
Unified Model,Massive Multi-input Multi-output,Cell-free Massive Multi-input Multi-output,Cellular Networks,Base Station,Power Control,Path Loss,Cell-free System,Channel Estimation,Minimum Mean Square Error,User Equipment,Linear Detection,Signal-to-interference-plus-noise Ratio,Uplink Transmission,Matched Filter,Pseudo-inverse Matrix,Time Division Duplex,Channel Statistics,Pilot Sequences,Power Control Scheme,Single Base Station,Inter-user Interference,Knowledge Of Channel State Information,Large-scale Fading
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