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The uplink spectral-efficiency of space-division multiple-access (SDMA) cellular systems is studied, when distributed base-station (BS) detection and distributed BS cooperation are employed. In contrast to the related works in literature, which mainly consider the linear and hexagonal Wyner models (or their extensions) with a constant factor for intercell interference (ICI), we address the impacts...
In this contribution we investigate the spectral-efficiency of a two-hop cooperative network using multicarrier code-division multiple-access (MC-CDMA) transmission scheme. The two-hop network constitutes K source users transmitting signals to K destinations with the aid of N relays. Our focus is on the relay optimization, when assuming that the N relays cooperate or do not cooperate with each other...
In this contribution we study the spectral-efficiency performance of a multicarrier direct-sequence code-division multiple-access system using both time (T)-domain and frequency (F)-domain spreading, which is referred to as TF/MC DS-CDMA for convenience, when communicating over Nakagami-m fading channels. We consider the TF/MC DS-CDMA scheme, since it is a generalized multiple-access scheme that can...
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