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In relay-aided cellular wireless communications mobile terminals (MTs) near the base-station (BS) are usually preferred to being selected as relays for the sake of achieving the relay diversity while simultaneously obtaining a high power-efficiency. However, this strategy may result in a so-called 'bottleneck' problem, when each source MT employs different relays, since the available relays near the...
In this contribution we investigate the bit-error-rate (BER) performance of a downlink direct-sequence code-division multiple-access (DS-CDMA) system, where a set of relays are chosen to assist a mobile terminal (MT) in order to improve its communications reliability with the base-station (BS). In our relay-aided DS-CDMA system, the downlink signal is detected at the relays based on the minimum mean-square-error...
In this contribution, we analyze the bit error rate (BER) performance of fast frequency hopping (FFH) assisted M-ary frequency shift keying (MFSK) using product combining. Product combining constitutes an efficient yet low-complexity scheme that may be employed in FFH-MFSK receiver to combat the detrimental effects of interference or jamming. We propose a novel approach to the analysis of this receiver...
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