Abstract
In this paper, we consider an Orthogonal Frequency Division Multiple Access (OFDMA) multi-cell system where multiple access ability user equipment (UE) exists. A two-level feedback scheme is used to collect information of each cell. Two kinds of channel state information (CSI) are fed back to base station (BS) within one cell while BSs use a greedy algorithm to reduce the feedback to a centralized Channel Distributor. The traffic load and access ability of UEs are considered together in BS side in order to guarantee Quality of Service (QoS). Finally, a System Capacity (SC) and System Unsatisfactory Degree (SUD) tradeoff algorithm is proposed to allocate channels to cells. Simulation experiments show that the proposed scheme is able to increase the throughput and to meet the traffic load requirement of the system.
| Original language | English |
|---|---|
| Title of host publication | International Conference on Ubiquitous and Future Networks, ICUFN |
| Publisher | IEEE Computer Society |
| Pages | 263-267 |
| Number of pages | 5 |
| Volume | 2015-August |
| ISBN (Print) | 9781479989935 |
| DOIs | |
| Publication status | Published - 2015 Aug 7 |
| Event | 7th International Conference on Ubiquitous and Future Networks, ICUFN 2015 - Sapporo, Japan Duration: 2015 Jul 7 → 2015 Jul 10 |
Other
| Other | 7th International Conference on Ubiquitous and Future Networks, ICUFN 2015 |
|---|---|
| Country | Japan |
| City | Sapporo |
| Period | 15/7/7 → 15/7/10 |
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Keywords
- channel allocation
- interference control
- multi access ability
- OFDMA
ASJC Scopus subject areas
- Computer Networks and Communications
- Computer Science Applications
- Hardware and Architecture