Title :
Capacity bounds for two-hop interference networks
Author :
Cao, Yi ; Chen, Biao
Author_Institution :
Dept. of EECS, Syracuse Univ., Syracuse, NY, USA
fDate :
Sept. 30 2009-Oct. 2 2009
Abstract :
This paper considers a two-hop interference network, where two users transmit independent messages to their respective receivers with the help of two relay nodes. The transmitters do not have direct links to the receivers; instead, two relay nodes serve as intermediaries between the transmitters and receivers. Each hop, one from the transmitters to the relays and the other from the relays to the receivers, is modeled as a Gaussian interference channel, thus the network is essentially a cascade of two interference channels. For this network, achievable symmetric rates for different parameter regimes under decode-and-forward relaying and amplify-and-forward relaying are proposed and the corresponding coding schemes are carefully studied. Numerical results are also provided.
Keywords :
Gaussian channels; decoding; encoding; receivers; switching networks; transmitters; wireless mesh networks; Gaussian interference channel; amplify and forward relaying; bound capacity; decode and forward relaying; receivers; relay nodes; transmitters; two hop interference networks; wireless mesh networks; Ad hoc networks; Decoding; Interference channels; Land mobile radio cellular systems; MIMO; Mesh networks; Relays; Throughput; Transmitters; Wireless mesh networks;
Conference_Titel :
Communication, Control, and Computing, 2009. Allerton 2009. 47th Annual Allerton Conference on
Conference_Location :
Monticello, IL
Print_ISBN :
978-1-4244-5870-7
DOI :
10.1109/ALLERTON.2009.5394811