Aïssa Ikhlef

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We propose a new relaying scheme referred to as space full-duplex max-max relay selection (SFD-MMRS), which uses relay selection and half-duplex (HD) relays with buffers to mimic full-duplex (FD) relaying. SFD-MMRS allows the selection of different relays for reception and transmission, which, in turn, enables the relays selected for reception and(More)
In this paper, we study a cooperative diversity scheme for wireless systems where the relay is equipped with a buffer. We consider practical frequency–selective channels and adopt the combination of bit interleaved coded modulation and orthogonal frequency division multiplexing (BICM–OFDM). We propose a novel link selection protocol for BICM–OFDM systems(More)
Energy harvesting (EH) nodes can play an important role in cooperative communication systems which do not have a continuous power supply. In this paper, we consider the optimization of conventional and buffer–aided link adaptive EH relaying systems, where an EH source communicates with the destination via an EH decode–and–forward relay. In conventional(More)
In this letter, we propose joint relay selection and power allocation schemes for maximization of the throughput of an amplify–and–forward (AF) cooperative communication system where the source and the relays are energy harvesting (EH) nodes. We formulate an offline optimization problem which can be solved optimally by the generalized Bender’s(More)
We show that the performance of relay selection can be improved by employing relays with buffers. Under the idealized assumption that no buffer is full or empty, the best source-relay and the best relay-destination channels can be simultaneously exploited by selecting the corresponding relays for reception and transmission, respectively. The resulting relay(More)
In this paper, the problem of channel equalization in filter bank multicarrier (FBMC) transmission based on the offset QAM (OQAM) subcarrier modulation is addressed. Finite impulse response (FIR) per-subchannel equalizers are derived, based on the frequency sampling (FS) approach, both for the single-input multiple-output (SIMO) receive diversity and the(More)
In this paper, we propose combined relay selection and cooperative beamforming schemes for physical layer security. Generally, high operational complexity is required for cooperative beamforming with multiple relays because of the required information exchange and synchronization among the relays. On the other hand, while it is desirable to reduce the(More)