Ferhat Yarkin

Source Transmit Antenna Selection for Space Shift Keying With Cooperative Relays

In this letter, we propose a cooperative multiple-input multiple-output (MIMO) scheme combining transmit antenna selection (TAS) and space shift keying (SSK). In this scheme, source transmit antennas are selected and SSK is applied by using the selected antennas. Besides the direct link transmission, the relays, that decode the source signal correctly, take part in the transmission. Exact expressions and a considerably accurate approximate expression for the symbol error rate of the proposed SSK system are derived. It is shown that the proposed scheme outperforms the SSK system without TAS and also the conventional cooperative MIMO system, which employs source TAS, at practical signal-to-noise ratio values for especially high data rates and sufficient number of receive antennas at the destination.

Space shift keying for multi-hop multi-branch networks

Abstract In this paper, we propose two different multi-hop multiple-input multiple-output (MIMO) space shift keying (SSK) schemes and investigate their error performance. In the first scheme, we consider a multi-hop multi-branch SSK system, in which the source and destination are equipped with multiple transmit and receive antennas, respectively. In this scheme, SSK is applied by using the source transmit antennas. Moreover, in each branch, single-antenna relays are used to amplify the transmitted signal from the source and forward it to the next relay until it reaches to the destination. In the second scheme, we consider a multi-hop MIMO-SSK system with path selection. In this scheme, the best path is selected among multiple branches and a multiple-antenna source communicates with a multiple-antenna destination via the relays of the selected path. Each relay is equipped with multiple transmit and receive antennas. Moreover, the source and all relays employ SSK modulation to transmit information bits and each relay in each path follows the decode-and-forward protocol. Approximate theoretical error probability expressions are derived for both schemes. Furthermore, an asymptotic symbol error probability performance analysis is also performed for the multi-hop MIMO-SSK system with path selection. It is shown that the proposed multi-hop SSK systems outperform conventional multi-hop M -PSK systems in terms of the error performance for especially high data rates and sufficient number of receive antennas at the receiving nodes.

Error performance analysis of multi-hop space shift keying with transmit antenna selection

In this paper, symbol error probability analysis is performed for multihop space shift keying (SSK) system with transmit antenna selection (TAS). In this scheme, SSK is applied on the selected antennas at each hop. It assumed that there is no line of sight transmission between the source and the destination and each receiving terminal decodes and forwards the received signal from the previous terminal and maps the decided information bits to the selected antennas according to SSK technique. For the proposed system, approximate and asymptotic symbol error probabilities are calculated and the theoretical results are verified by computer simulations. It is shown that the proposed system provides better error performance than the multihop SSK system without TAS, and it is also indicated that the proposed system outperforms conventional M-QAM system for especially high data rates and sufficient number of receive antennas at the destination.

Outage probability of spatial modulation with antenna selection in Nakagami-m channel

In this paper, outage probability analysis of spatial modulation with capacity optimized antenna selection is studied in Nakagami-m fading channel model. At first, we obtain probability density function of received signal-to-noise ratio for Nakagami-m channel. By use of the PDF, the performance of the system is evaluated in terms of outage probability. It is shown that the system performance is improved when fading severity m increases. Also, all the analytical results are verified by the computer simulations.

Outage performance of spatial modulation with transmit antenna selection over Nakagami-m fading channels with arbitrary m

In this paper, we investigate performance of a multiple-input multiple-output scheme with spatial modulation (SM) and transmit antenna selection (TAS) in Nakagami-m fading channels. In this scheme, transmit antennas which maximize capacity of the system are selected for transmission and then SM is applied by using the selected transmit antennas. The closed-form outage probability of the SM system with TAS is derived in Nakagami-m channels for arbitrary values of m. The asymptotic diversity analysis is also performed to demonstrate the achieved diversity order of the system. It is shown that outage performance of the system improves when fading parameter m and/or number of transmit antennas increase. Our analytical results are validated by Monte Carlo simulations.