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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hongkun Yang Fengyuan Ren Chuang Lin Jiao Zhang |
| Copyright Year | 2010 |
| Abstract | In this paper, we investigate the frequency-domain packet scheduling (FDPS) problem for 3GPP LTE Uplink (UL). Instead of studying a specific scheduling policy, we provide a unified approach to tackle this issue. First we formalize a general LTE UL FDPS problem which is suitable for various scheduling policies. Then we prove that the problem is MAX SNP-hard, which implies that approximation algorithms with constant approximation ratios are the best that we can hope for. Therefore we design two approximation algorithms, both of which have polynomial runtime. Subsequently, we analyze the two algorithms and find their approximation ratios. The first algorithm is easy to follow, since it is based on a simple greedy method. The second one is based on the local ratio technique and it can approximately solve the LTE UL FDPS problem with a approximation ratio of 2. |
| Starting Page | 1 |
| Ending Page | 9 |
| File Size | 234319 |
| Page Count | 9 |
| File Format | |
| ISBN | 9781424458363 |
| ISSN | 0743166X |
| e-ISBN | 9781424458387 |
| DOI | 10.1109/INFCOM.2010.5462089 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-03-14 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Scheduling algorithm OFDM Approximation algorithms Peak to average power ratio Algorithm design and analysis Delay Costs Bandwidth Frequency domain analysis Heuristic algorithms |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Science Electrical and Electronic Engineering |
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