Timing and Carrier Synchronization With Channel Estimation in Multi-Relay Cooperative Networks

• Published in: IEEE transactions on signal processing Vol. 60; no. 2; pp. 793 - 811
• Main Authors: Nasir, Ali A., Mehrpouyan, Hani, Blostein, Steven D., Durrani, Salman, Kennedy, Rodney A.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.02.2012; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Applied sciences; Channel estimation; Channels; Coding, codes; Cooperative communications; Cramér-Rao lower bounds (CRLB); Decoding; Detection, estimation, filtering, equalization, prediction; Exact sciences and technology; expectation conditional maximization (ECM); Gain; Impairment; Information, signal and communications theory; Joints; Maximum likelihood estimation; Networks; Relays; Signal and communications theory; Signal, noise; space-alternating generalized expectation-maximization (SAGE); Synchronism; Synchronization; Telecommunications and information theory; timing and carrier synchronization; Performance evaluation; Relaying; Parameter estimation; Relay; Relay network; Iterative method; space-alternating generalized expectation-maximization (SAGE); Cramér―Rao lower bounds (CRLB); Transceiver; Channel estimation; Routing protocols; Multiple frequency; Cramer Rao inequality; Time variable channel; timing and carrier synchronization; Multicarrier; Transmission protocol; Cooperative systems; Synchronization; Maximum likelihood decoding; Cooperative communications; Carrier frequency; expectation conditional maximization (ECM); Signal processing; Numerical simulation; Frequency offset; Timing; EM algorithm

Multiple distributed nodes in cooperative networks generally are subject to multiple carrier frequency offsets (MCFOs) and multiple timing offsets (MTOs), which result in time varying channels and erroneous decoding. This paper seeks to develop estimation and detection algorithms that enable coopera...