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Base station cooperation (BSC), also known as Cooperative MultiPoint (CoMP), has been identified as a key radio access technology for nextgeneration cellular networks. This work creates a foundational framework that extends BSC transmission to provide spatial spectrum sharing (SSS) through MIMO null beamforming while enjoying cooperative stream transmission. SSS is investigated by introducing the protected Gaussian MIMO broadcast channel (PGMBC), a GMBC with receive power constraints. Applications of the PGMBC are identified and its capacity region is derived. In addition, precoding schemes are developed to mitigate intercell interference and intersystem interference. The simulations show that through BSC, significant throughput gains over noncooperative nullbeamforming schemes can be achieved. However, to maximize the benefits of BSC in practical networks, the location and configuration of BS sites must be planned accordingly. This work introduces a fundamental framework for planning BSC networks. The impacts of BSC on coverage, capacity, complexity are investigated. In addition, a cell planning procedure for distributed, dynamic fractional BSC networks is described.
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This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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