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- W1765509144 abstract "We study multiple-input-multiple-output (MIMO)-based downlink heterogeneous cellular networks (HetNets) with joint transmit-receive diversity using orthogonal space-time block coding at the base stations (BSs) and maximal-ratio combining (MRC) at the users. MIMO diversity with MRC receivers is particularly appealing in cellular networks due to the relatively low hardware complexity at both the BS and the user device. Using stochastic geometry, we develop a tractable stochastic model for analyzing such HetNets taking into account the irregular and multitier BS deployment. We derive the coverage probability for both interference-blind (IB) and interference-aware (IA) MRC as a function of the relevant tier-specific system parameters such as BS density and transmit (Tx) power, number of Tx antennas, and path-loss law. Important insights arising from our analysis for typical HetNets are as follows: 1) IA-MRC becomes less favorable than IB-MRC with Tx diversity due to the smaller interference variance and increased interference correlation across receive (Rx) antennas; 2) ignoring spatial interference correlation significantly overestimates the performance of IA-MRC; and 3) for a small number of Rx antennas, selection combining may offer a better performance-complexity tradeoff than MRC." @default.
- W1765509144 created "2016-06-24" @default.
- W1765509144 creator A5013845073 @default.
- W1765509144 creator A5048334976 @default.
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- W1765509144 date "2015-12-01" @default.
- W1765509144 modified "2023-09-24" @default.
- W1765509144 title "Analysis of Joint Transmit–Receive Diversity in Downlink MIMO Heterogeneous Cellular Networks" @default.
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- W1765509144 doi "https://doi.org/10.1109/twc.2015.2458315" @default.
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