Relay architectures for 3GPP LTE-advanced
EURASIP Journal on Wireless Communications and Networking - 3GPP LTE and LTE Advanced
Cellular systems with non-regenerative relaying and cooperative base stations
IEEE Transactions on Wireless Communications
Multi-cell MIMO cooperative networks: a new look at interference
IEEE Journal on Selected Areas in Communications - Special issue on cooperative communications in MIMO cellular networks
IEEE Journal on Selected Areas in Communications - Special issue on cooperative communications in MIMO cellular networks
Hi-index | 754.84 |
In this correspondence, joint (cooperative) decoding at the base stations combined with collaborative transmission (relaying) is investigated as a means to improve the uplink throughput of current cellular systems over fading channels. Intracell orthogonal medium access control (e.g., TDMA, FDMA, or orthogonal CDMA) and Decode-and-Forward relaying by either a mobile terminal or a fixed relay are assumed. Moreover, the cellular system is modeled according to a simplified framework introduced by Wyner. The per-cell achievable ergodic throughput is calculated for different system configurations and then characterized in the low-power (wideband) regime in terms of minimum energy per bit required for reliable communication and slope of the spectral efficiency. The analysis allows to clearly assess the relative merits of both cooperation among base stations and at the terminal level within the considered model.