Title
Physical layer approximations for cross-layer performance analysis in MIMO-BLAST ad hoc networks
Abstract
In this paper, we consider a MAC protocol for ad hoc networks where nodes are equipped with multiple antennas, and communications are spatially multiplexed using the Bell labs layered space time (BLAST) system. The contribution of this paper is twofold. First, we introduce two different analytical models aimed at predicting the propagation of detection errors within the BLAST receiver, the first based on a Gaussian approximation of the detection errors, and the second on the weighed enumeration of error configurations. A simplification of the latter, with lower complexity, is also obtained and compared to the original model. We then use these analytical tools to assess the performance of a cross-layer MAC protocol, and compare it with fully detailed simulations. Since the analytical tools replace the simulation of the physical layer, the proposed semianalytical approach is much faster than the bit-by-bit simulations. Numerous results are provided for the network performance assessment, showing that our semianalytical approach is able to predict network behavior with very good accuracy, but much lower complexity.
Year
DOI
Venue
2007
10.1109/TWC.2007.060211
IEEE Transactions on Wireless Communications
Keywords
Field
DocType
Gaussian processes,MIMO systems,access protocols,ad hoc networks,receivers,BLAST receiver,Bell labs layered space time system,Gaussian approximation,MAC protocol,MIMO-BLAST networks,ad hoc networks,cross-layer performance analysis,multiple antennas,network performance assessment,physical layer approximations,Ad hoc networks, cross¿layer MAC design, MIMO¿BLAST, performance analysis
Computer science,Computer network,MIMO,Musical instrument,Physical layer,Gaussian process,Throughput,Wireless ad hoc network,Multiplexing,Network performance
Journal
Volume
Issue
ISSN
6
12
1536-1276
Citations 
PageRank 
References 
14
0.78
19
Authors
4
Name
Order
Citations
PageRank
Levorato, M.1140.78
Stefano Tomasin21145102.92
Paolo Casari333432.89
Michele Zorzi47079736.49