Name
Abstract | ||
|---|---|---|
Orthogonal Frequency-Division Multiple Access (OFDMA) has emerged as an advanced technique to enhance resource utilization and efficiency in infrastructure-based networks. However, its performance in wireless mesh networks is mostly unexplored. In this paper, we practically study the benefits of OFDMA in a scenario with multiple co-located transmitters and receivers without centralized controller by means of the software-defined radio platform WARP. We propose five different dynamic subchannel allocation strategies and compare their performance to that of OFDM as a baseline. Four of these strategies are constrained to be fair with respect to the number of subchannels allocated per communication link, while the fifth always allocates a subchannel to its best possible communication link. By means of testbed experiments with software-defined radios, we show that the overall bit error rate can be reduced by a factor of ten, while the overall channel capacity can locally be enhanced by 10% to 30%. Further, we use the Subchannel Avoidance Gain as a metric to quantify the ability of a dynamic subchannel allocation strategy to avoid subchannel allocations resulting in poor channel conditions. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1145/2491246.2491249 | SRIF@SIGCOMM |
Field | DocType | Citations |
Control theory,Computer science,Testbed,Communication channel,Computer network,Resource allocation,Wireless mesh network,Channel capacity,Orthogonal frequency-division multiplexing,Distributed computing,Bit error rate | Conference | 1 |
PageRank | References | Authors |
0.36 | 13 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Robin Klose | 1 | 5 | 2.84 |
| Adrian Loch | 2 | 83 | 14.54 |
| Matthias Hollick | 3 | 750 | 97.29 |