Impairments in coordinated cellular networks: analysis, impact on performance and mitigation (2015)
Abstract / truncated to 115 words
Base station cooperation is recognized as a key technology for future wireless cellular communication networks. Considering antennas of distributed base stations and those of multiple terminals within those cells as a distributed multiple-input multiple-output (MIMO) system, this technique has the potential to eliminate inter-cell interference by joint signal processing and to enhance spectral efficiency in this way. Although the theoretical gains are meanwhile well-understood, it still remains challenging to realize the full potential of such cooperative schemes in real-world systems. Among other factors, such as the limited overhead for pilot symbols and for the feedback and backhaul, these performance limitations are related to channel and synchronization impairments, such as channel estimation, feedback quantization and channel ... toggle 5 keywordsbase station coordination – coordinated multi-point (comp) – synchronisation – imperfect channel knowledge – imperfect precoding
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