Local base station cooperation via finite-capacity links for the uplink of linear cellular networks
IEEE Transactions on Information Theory
Uplink macro diversity of limited backhaul cellular network
IEEE Transactions on Information Theory
Clustered local decoding for Wyner-type cellular models
IEEE Transactions on Information Theory
A WiMAX-based implementation of network MIMO for indoor wireless systems
EURASIP Journal on Advances in Signal Processing - Multiuser MIMO Transmission with Limited Feedback, Cooperation, and Coordination
Performance analysis of MIMO cellular network with channel estimation errors
IEEE Transactions on Wireless Communications
| Hi-index | 755.02 |
A chip-interleaved randomly spread direct-sequence code-division multiple-access (DS-CDMA) scheme is considered, employed in two variants of Wyner's infinite linear cell-array model with flat fading. Focusing on the asymptotic setup in which both the number of users per cell and the processing gain go to infinity, while their ratio (the ldquocell loadrdquo) goes to some finite constant, the spectral efficiencies of the optimum and linear minimum mean-squared error (MMSE) joint multicell receivers are investigated. A dramatic performance enhancement as compared to single-cell-site processing is demonstrated. The asymptotic behavior of the two receivers in extreme signal-to-noise ratio (SNR) regimes and in a high cell-load regime are analyzed as well. The impact of chip interleaving versus symbol interleaving is also investigated. Chip-level interleaving is found beneficial in several cases of interests, and is conjectured to be beneficial in general.