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In multi-user multi-input multi-output (MIMO) systems, multiple timing and frequency offsets may occur in the procedure of synchronization. Conventional MIMO synchronization methods deal with timing and frequency offsets separately. In fact, these methods can not achieve the best performances because the unknown parameters will interfere with each other. In this paper, we propose a joint timing-frequency...
This paper investigates the cooperative timing acquisition (CTA) for distributed antenna systems (DAS). As a preliminary study, the path loss and additive white Gaussian noise (AWGN) channel are considered without assuming multipath fading and shadowing. In the DAS coverage region, two remote antennas (RA) are assumed at base station (BS) for receiving the signal transmitted from the mobile station...
In this paper, we consider the problem of multiple frequency offsets pre-correction in distributed multi-input multi-output (MIMO) systems. In practical distributed MIMO system, each pair of transmit and receive antenna has a different frequency offset and the received signal at each receiver is the summation of all the transmitted signals. These multiple frequency offsets make frequency compensation...
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