Multi-User Scheduling in AF Relay Network with Antenna Correlation

Abstract

Abstract-This paper presents the performance analysis of multi-user scheduling for channel state information (CSI)-assisted and fixed gain AF relaying with antenna correlation. We consider a source equipped with multiple correlated antennas communicating with multiple users via a relay which has dual correlated antennas. The system performance degrades with the spatial correlation. Hence we derive the exact closed form solutions to outage probability, average symbol error rate (SER) and generalized higher moment of the signal-to-noise ratio (SNR) to quantify this detrimental effect. The ergodic capacity is also analyzed. To understand the insight system performance behavior and the diversity gain, we present a high SNR analysis. The analytical results are verified with the Monte Carlo simulations at the end.

MIMO multiuser cognitive relay network in spectrum sharing environment with antenna correlation over Rayleigh fading channels

“…One of the most common cognitive radio paradigms is called the underlay CR paradigm [1,2] in which the secondary user (SU) is allowed to share the spectrum with the primary user (PU) simultaneously under a peak interference temperature constraint to guarantee reliable communication between the PUs. The effect of antenna correlation on the perfromance of MIMO multiuser system was investigated in [3] in which a multiuser scheduling for CSI-assited and fixed gain amplify-and-forward (AF) relaying was employed. Closed-form expressions for outage probability and symbol error rate (SER) were derived.…”

Effect of antenna correlation on the performance of MIMO multi-user dual hop relay network

“…Several studies have been undertaken to analyze the performance of MRN (see e.g. [5]- [9]). Authors in [7] analyzed the performance of a MRN with single antenna nodes for Nakagami-m channels and obtained the outage probability, while they derived the symbol error rate for the same network in [8].…”

“…Authors in [7] analyzed the performance of a MRN with single antenna nodes for Nakagami-m channels and obtained the outage probability, while they derived the symbol error rate for the same network in [8]. Recently, we studied the performance of MRN where a source with multiple correlated antennas communicates with single antenna users through a dual correlated antenna relay in [9].…”

Transmit antenna selection of correlated MIMO multiuser cognitive radio networks in Nakagami‐m fading channels

“…In addition, the impact of antenna correlation on the secondary user ergodic capacity has been investigated by deriving closed-form expressions for the secondary user capacity. The derived analytical formulas herein are supported by numerical and simulation results to clarify the main contributions.TAS of correlated MIMO-MCN in Nakagami-m fading channels state information (CSI)-assisted and fixed gain AF relaying was investigated in [6]. MRN was considered with a single source and multiple correlated antennas communicating with a selected destination from a set of multidestinations, which are equipped with a single antenna via a dual correlated antennas AF relay.…”

“…TAS of correlated MIMO-MCN in Nakagami-m fading channels state information (CSI)-assisted and fixed gain AF relaying was investigated in [6]. MRN was considered with a single source and multiple correlated antennas communicating with a selected destination from a set of multidestinations, which are equipped with a single antenna via a dual correlated antennas AF relay.…”