FBMC Distributed and Cooperative Systems
(2017) Orthogonal Waveforms and Filter Banks for Future Communication Systems — ISBN: [9780128103852], 421-440, published
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- Authors
Rottenberg, François 
- Abstract
- Distributed and cooperative systems exploit the benefits of Multiple-Input Multiple-Output (MIMO) in a flexible manner and are regarded as key enabling technologies for efficient spectrum utilization. Perfect synchronization, though stringently required, proves to be difficult to guarantee in such sophisticated communication scenarios. One intriguing advantage of FilterBank MultiCarrier (FBMC) in general and of its Offset-Quadrature Amplitude Modulation (OQAM) version in particular, is its strong resilience to synchronization errors. This makes it a promising multicarrier modulation scheme for distributed and cooperative systems, which is the focus of this chapter. First, we present FBMC-based Coordinated Multi-Point (CoMP) schemes. Partial coordination of adjacent cells is enabled to assist cell edge users to combat the intracell interference, the intercell interference, and the greater path loss compared to cell interior users. This is achieved via an Intrinsic Interference Mitigating Coordinated Beamforming (IIM-CBF) scheme, which jointly and iteratively computes the precoding and the decoding matrices for each subcarrier. Second, channel state information acquisition, which is a requirement in order to implement the schemes presented in the first part, is addressed for FBMC-based distributed systems. Preamble-based techniques are analyzed, and a study is performed of the influence of the assignment of pilot subcarriers to different base stations. Then, a method of tracking channel estimates for the distributed MIMO downlink is also investigated that does not require any pilot and only relies on the feedback of Signal-to-Noise Ratio (SNR) measurements.
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Citations
Yao Cheng, Rottenberg, F., Louveaux, J., Eleftherios Kofidis, & Martin Haardt. (2017). FBMC Distributed and Cooperative Systems. In Markku Renfors, Xavier Mestre, Eleftherios Kofidis, Faouzi Bader (ed.), Orthogonal Waveforms and Filter Banks for Future Communication Systems (pp. 421-440). Elsevier. https://doi.org/10.1016/B978-0-12-810384-5.00016-5