Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Positive Operation Valued Measurement Based Multi-User Detection in
  DS-CDMA Systems   3G and 4G mobile are based on CDMA technology. In order to increase the
effectiveness of CDMA receivers large amount of effort is invested to develop
suitable multi-user detector techniques. However, at this moment there are only
suboptimal solutions available because of the rather high complexity of optimal
detectors. One of the possible receiver technologies can be the quantum
assisted computing devices which allows high level parallelism in computation.
The first commercial devices are estimated by 2004, which meets the advert of
3G and 4G systems. In this paper we introduce a novel quantum computation based
Quantum Multi-user detection (QMUD) algorithm, employing simple Positive
Operation Valued Measurement (POVM), which provides optimal solution. The
proposed algorithm is robust to any kind of noise.

23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph