Name
Abstract | ||
|---|---|---|
In this paper, we propose a coordinated scheduling scheme in downlink multi-cell Orthogonal Frequency Division Multiplexing Access (OFDMA) networks. Firstly, a novel decision tree algorithm is introduced to categorize users according to certain attribute parameters to improve system performance. To suppress inter-cluster interference, a filter is used at the receive. To mitigate intra-cluster interference and enhance system performance, we jointly form precoding matrix (using Block Diagonalization precoding) and distribute power for coordinative users. Considering the fact that there is a constraint on number of coordinative users simultaneously served on one resource slot and there may be a large number of users needing coordinative transmission, it is necessary to allocate proper resource slots to them, seeking a tradeoff between coordinative user sum rate and system total capacity. Thus, a performance-based slot distribution is utilized. What needs to be pointed out is that our power control is a per BS power constraint. Simulation results show that our proposed scheme can significantly improve the performance of multi-cell networks. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/VTCFall.2014.6965922 | VTC Fall |
Keywords | Field | DocType |
decision tree algorithm,power control,scheduling,coordinated scheduling scheme,cellular radio,precoding,system total capacity,performance-based slot distribution,bs power constraint,ofdm modulation,matrix algebra,attribute parameters,downlink multicell orthogonal frequency division multiplexing access networks,block codes,frequency division multiple access,intercluster interference suppression,coordinative user sum rate,downlink multicell ofdma networks,resource slot allocation,coordinative transmission,resource slot,intercluster interference mitigation,interference suppression,decision trees,block diagonalization precoding,precoding matrix | Computer science,Scheduling (computing),Computer network,Electronic engineering,Zero-forcing precoding,Telecommunications link | Conference |
Citations | PageRank | References |
0 | 0.34 | 6 |
Authors | ||
6 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ling Zhang | 1 | 13 | 3.02 |
| Xiangming Wen | 2 | 618 | 82.20 |
| Ting Xu | 3 | 0 | 0.34 |
| Zhaoming Lu | 4 | 168 | 53.12 |
| Jun Zhao | 5 | 0 | 0.34 |
| Shenghua He | 6 | 0 | 0.34 |