Title
Widely-linear filtering and non-cooperative transceiver optimization in wireless data networks.
Abstract
The issue of non-cooperative transceiver optimization in the uplink of a multiuser wireless data network with widely linear detection at the receiver is considered in this paper. While previous work in this area has focused on a simple real signal model, in this paper a baseband complex representation of the data is used, so as to properly take into account the I and Q components of the received signal. For the case in which the received signal is improper, a widely-linear reception structure, processing separately the data and their complex conjugates, is considered. The convergence of the well-known minimum mean square error (MMSE) iteration for spreading code adaptation is studied for the case in which widely-linear detection is used at the receiver. Interestingly, it is also found that spreading code optimization coupled with widely-linear filtering permits supporting, with no multiuser interference, a number of users that is twice the processing gain. Numerical results corroborate the validity of the theoretical analysis, and show that exploiting the improper nature of the data in non-cooperative resource allocation brings remarkable performance improvements in multiuser wireless systems.
Year
DOI
Venue
2009
10.1109/GAMENETS.2009.5137408
GAMENETS
Keywords
Field
DocType
multiuser interference,code adaptation,code optimization,complex conjugates,simple real signal model,non-cooperative transceiver optimization,baseband complex representation,multiuser wireless system,widely-linear reception structure,widely-linear detection,multiuser wireless data network,linear filtering,signal to noise ratio,quality of service,resource management,correlation,receiver,games,transceivers,transmitters,design optimization,interference,minimum mean square error,optimization,resource allocation,iterative methods,data processing,filtering
Baseband,Transceiver,Computer science,Signal-to-noise ratio,Minimum mean square error,Filter (signal processing),Theoretical computer science,Electronic engineering,Resource allocation,Process gain,Telecommunications link
Conference
ISBN
Citations 
PageRank 
978-1-4244-4177-8
1
0.35
References 
Authors
18
3
Name
Order
Citations
PageRank
Stefano Buzzi1195175.30
H. V. Poor2254111951.66
Alessio Zappone3164169.84