Title :
Energy efficiency of amplify-and-forward, repetition coding and parallel coding in short range communications
Author :
Kakitani, Marcos Tomio ; Brante, Glauber ; Souza, Richard Demo ; Imran, Muhammad Ali
Author_Institution :
CPGEI (Grad. Sch. of Electr. Eng. & Comput. Sci.), Fed. Univ. of Technol., Paraná, Brazil
Abstract :
In this paper we exploit cooperative relaying for energy savings in narrowband short range communication scenarios. The nodes can operate under cooperative decode-and-forward with repetition coding (RC) or with parallel coding (PC), and cooperative amplify-and-forward (AF) protocols. The system is constrained by maximum packet loss and end-to-end throughput requirements. Our results show that, when the relay is closer to the source, AF and RC present similar performance in terms of energy consumption, while PC significantly outperforms the other schemes. On the other hand, when the relay is near the destination, AF offers the best efficiency.
Keywords :
amplify and forward communication; cooperative communication; decode and forward communication; encoding; energy consumption; protocols; AF; RC; amplify-and-forward energy efficiency; cooperative amplify-and-forward protocols; cooperative relaying; end-to-end throughput requirements; energy savings; maximum packet loss; narrowband short range communication; parallel coding; repetition coding; short range communications; Encoding; Fading; Protocols; Relays; Throughput; Wireless communication; Wireless sensor networks; Amplify-and-forward; decode-and-forward; energy efficiency; relay position; short range communications;
Conference_Titel :
Telecommunications and Signal Processing (TSP), 2012 35th International Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4673-1117-5
DOI :
10.1109/TSP.2012.6256284