Title :
MIMO Incremental AF Relay Networks with TAS/MRC and Adaptive Modulation
Author :
Thi My Chinh Chu ; Hoc Phan ; Zepernick, Hans-Jurgen
Author_Institution :
Blekinge Inst. of Technol., Karlskrona, Sweden
Abstract :
In this paper, we study the use of adaptive modulation (AM) for a dual-hop multiple-input multiple-output (MIMO) network with transmit antenna selection (TAS) at the transmitter and maximal ratio combining (MRC) at the receiver. Our system deploys incremental amplify-and-forward (AF) relaying with AM to forward the source signal. A switching policy for selecting between the relaying and the direct communications is utilized to maximize spectrum efficiency. In particular, we derive expressions for the outage probability, spectrum efficiency, and bit error rate (BER) for the considered system over Nakagami-m fading. The considered network not only takes advantage of TAS transmission such as achieving full diversity order with low transmit complexity but also inherits the beneficial feature of AM such as spectrum efficiency improvement.
Keywords :
MIMO communication; Nakagami channels; adaptive modulation; amplify and forward communication; error statistics; radio transmitters; relay networks (telecommunication); transmitting antennas; BER; MIMO network; Nakagami-m fading; TAS-MRC; adaptive modulation; amplify-and-forward relaying; bit error rate; dual-hop network; incremental AF relay networks; maximal ratio combining; multiple-input multiple-output network; outage probability; receiver; transmit antenna selection; transmitter; Bit error rate; Fading; MIMO; Modulation; Receiving antennas; Relays; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2013 IEEE 78th
Conference_Location :
Las Vegas, NV
DOI :
10.1109/VTCFall.2013.6692281
