Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spreading Code and Widely-Linear Receiver Design: Non-Cooperative Games
  for Wireless CDMA Networks   The issue of non-cooperative transceiver optimization in the uplink of a
multiuser wireless code division multiple access data network with
widely-linear detection at the receiver is considered. 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. Several
non-cooperative resource allocation games are considered for this new scenario,
and the performance gains granted by the use of widely-linear detection are
assessed through theoretical analysis. Numerical results confirm the validity
of the theoretical findings, and show that exploiting the improper nature of
the data in non-cooperative resource allocation brings remarkable performance
improvements in multiuser wireless systems.

36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph