Title :
Distributed spatial multiplexing in a wireless network
Author :
Rankov, Boris ; Wittneben, Armin
Author_Institution :
Commun. Technol. Lab., ETH Zurich, Switzerland
Abstract :
We study a wireless network with one source-destination pair and several relays that forward the data from source to donation in a multi-hop fashion. We compare two schemes: i) The relays operate in an amplify-and-forward (AF) mode and establish a point-to-point MIMO channel between source and destination (MIMO tunnel), ii) The relays operate in a decode-and-forward (DF) mode and the data Is transmitted over different network paths (multi-path transmission). We show that the MIMO tunnel with AF relays outperform the multipath transmission with DF relays with respect to information rates.
Keywords :
MIMO systems; ad hoc networks; multipath channels; multiplexing; relays; AF relays; DF relays; MIMO tunnel; amplify-and-forward mode; decode-and-forward mode; distributed spatial multiplexing; multipath transmission; point-to-point MIMO channel; source-destination pair; wireless network; Costs; Decoding; Intelligent networks; MIMO; Physical layer; Power system relaying; Relays; Spread spectrum communication; Wireless networks; Wireless personal area networks;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on
Print_ISBN :
0-7803-8622-1
DOI :
10.1109/ACSSC.2004.1399501
