A cross-layer approach to transmit antenna selection

Abstract

Abstract-In this paper, we investigate a cross-layer approach to transmit antenna selection capable of adapting the number of active antennas to varying channel conditions. We address a cross-layer methodology in the sense that the criterion for the selection of antenna subsets is the maximization of link layer throughput which takes into account characteristics both at the physical and link layers. In order to enhance system performance, adaptive modulation is included to jointly perform antenna selection and rate adaptation. Performance assessment is conducted in terms of link layer throughput and transmission delay.

Energy efficiency analysis of antenna selection multi‐input multi‐output automatic repeat request systems over Nakagami‐mfading channels

“…Note that (9) can also be obtained by substituting (7) into the integral in (6). When the parameter m = 1 (i.e.…”

“…(2)), α = (L f /L d ) × (j/η) × G d N 0 and β = j/R b . Substituting (5), (9) and (15) into (13) results in…”

Particle swarm optimization for energy efficient antenna selection in MIMO broadcasting channel

“…Since the numerator and denominator in Eq.5 are concave and affine respectively, Eq.5 is a concave fractional programming [5]. By defining a non-negative parameter , the above equation is converted to a convex function separating numerator and denominator with help of .…”

“…Antenna selection approaches are widely used to increase capacity or throughput in MIMO systems [4][5]. However, the spectral efficient transmitter antenna selection is always performed to choose the active antennas when the number of radio frequency chains is larger than the number of the antennas.…”

MIMO Cross-Layer Design for Ad-Hoc Networks

“…Similarly in [12], the authors proposed a modified MAC protocol where nodes use all antennas to transmit ready-to-send (RTS) or clear-to-send (CTS) control messages after which data packets are sent using directional antennas. In MIMO spatial multiplexing system, the authors in [15] proposed a cross-layer approach combining antenna selection (AS) in Rayleigh fading channels. Along the same lines, in [16] the authors proposed a cross-layer AS approach for MIMO spatial-multiplexing (SM) system deploying the decision-feedback detector (DFD) at the receiver.…”