Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Frequency and time domain packet scheduling based on channel prediction
  with imperfect CQI in LTE   Channel-dependent scheduling of transmission of data packets in a wireless
system is based on measurement and feedback of the channel quality. To
alleviate the performance degradation due to simultaneous multiple imperfect
channel quality information (CQI), a simple and efficient packet scheduling
(PS) algorithm is developed in downlink LTE system for real time traffic. A
frequency domain channel predictor based on Kalman filter is first developed to
restore the true CQI from erroneous channel quality feedback. Then, a time
domain grouping technique employing the joint of Proportional Fair (PF) and
Modified Largest Weighted Delay First (M-LWDF) algorithms is used. It was
proved this proposal achieves better performance in terms of system throughput
and packet loss ratio by simulation results.

18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph