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Nonlinear Effects of Radio over Fiber Transmission in Base Station Cooperation ...
Casal Ribeiro, Filipe; Guerreiro, João; Dinis, Rui; Cercas, Francisco; Silva, Adão; Pinto, ArmandoIn this paper we consider the uplink of Base Station (BS cooperation) systems, where each Mobile Terminal (MT) employs a Single-Carrier with Frequency-Domain Equalization (SC-FDE) modulation scheme. The combined signals at each BS are detected and/or separated by a Central Processing Unit (CPU) with Iterative Block Decision Feedback Equalization (IBDFE) receivers. We consider a Radio-over-Fiber (RoF) link betwe...
Robust Receivers for Base Station Cooperation Systems
Casal Ribeiro, Filipe; Guerreiro, João; Dinis, Rui; Silva, Adão; Cercas, FranciscoIn BS (Base Station) cooperation architectures the MTs (Mobile Terminals) in adjacent cells can operate in the same frequency, with the signal's separation and/or MTs detection being performed by a CPU (Central Processing Unit). This results in a substantial improvement in the overall system's capacity and spectral efficiency when compared to conventional cellular systems. To decrease the data load in the backh...
An Accurate Low Complexity Method for Studying Quantization Effects in Base Sta...
Guerreiro, João; Casal Ribeiro, Filipe; Dinis, RuiOrthogonal frequency division multiplexing (OFDM) modulations are very popular in wireless communications due to their flexibility and good performance over severely time-dispersive channels. However, OFDM signals have large peak-to-average power ratio (PAPR), which leads to amplification problems. Constant envelope OFDM (CE-OFDM) techniques use an OFDM signal to modulate the phase of a given carrier, allowing ...