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The single-carrier frequency division multiple access (SC-FDMA) is employed in the 3GPP Long Term Evolution (LTE) standard as the uplink transmission scheme. In this paper, we propose a novel successive interference cancellation (SIC) detector for multiuser detection in multiuser Multiple Input Multiple Output (MIMO) SC-FDMA system with co-channel interference (CCI). Compared to conventional SIC receiver,...
This paper proposes different criteria for user pairing for a virtual multiple-input multiple-output (V-MIMO) single-carrier frequency-division multiple access (SC-FDMA) transmission over intersymbol interference (ISI) channels. Two users, equipped with a single antenna each, transmit their data in the same time slot and frequency band. The receiver at the base station (BS) is assumed to have two...
This paper presents efficient and high performance multiuser detectors (MUD) for multi-code DS-CDMA uplink system under different system loading over severe CM4 UWB indoor channel dispersion. Under low to moderate loading (up to 4 users), we first present a RAKE with parallel bi-directional decision feedback (RAKE-PBDDF) MUD for solving the intersymbol, multi-code, and multiple access interferences...
This paper proposes a novel receiver architecture named as "Virtual layered space time reception" for MIMO wireless communication systems. In the proposed reception architecture, a transmission signal is regarded to comprise a sign signal and fractional phase shift. The phase shift combined with wireless channels are dealt as a virtual channel. Then, the sign signal which is assumed to be...
Against eliminating the multiple access interference (MAI) and sky-wave interference under multi-path channel in the radio navigation system, an improved hybrid interference cancellation (HIC) method that combines the advantages of both the successive interference canceller (SIC) and the parallel interference canceller (PIC) is proposed in this paper. It has the advantages of low complexity and easy...
We investigate the BER and achievable rate of user cooperation schemes in practical uplink CDMA channels with multiple access interference (MAI). It is shown that when the system loading increases, cooperation alone becomes less effective if simple matched filters (MF) followed by combining from each partnerspsila signals are employed for obtaining decision variables. By performing successive interference...
In this paper, we introduce blind adaptive interference cancellation for a practical uplink CDMA effected by multiple access interference (MAI) in cooperative communications systems scenario. During the collaboration phase, each paired users exchange their data to communicate with the base-station by using their own and pairing userspsila channels to achieve the spatial diversity. The base-station...
Multiple-input multiple-output (MIMO) system with multicode transmission can provide high speed data services by transmitting independent parallel substreams from multiple antennas and through multicode channelization. In this paper, we first introduce an iterative two-stage successive interference cancellation (SIC) detection scheme for a multicode MIMO system. The proposed technique cancels the...
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