Communications of the ACM
Researchers Use Flexible Channel Width to Improve User Experience on Wireless Systems
North Carolina State University researchers plan to use the school's CentMesh wireless network to test their new dynamic technique in real-world conditions.
Credit: North Carolina State University
A new technique developed by researchers at North Carolina State University (NCSU) improves the performance of multi-hop wireless networks.
Such networks have trouble providing equitable service to its users due to limited bandwidth and interference with data transmission between wireless nodes.
NCSU's dynamic technique enables multi-hop networks to take advantage of technology that can efficiently split the bandwidth of the wireless spectrum into channels of different sizes based on the needs of users of the network. "The amount of channel width allotted to users is constantly being modified to maximize the efficiency of the system and avoid what are, basically, data traffic jams," says NCSU professor Rudra Dutta.
Ph.D. student Parth Pathak notes that "our objective is to maximize throughput while ensuring that all users get similar 'quality of experience' from the wireless system, meaning that users get similar levels of satisfaction from the performance they experience from whatever applications they're running."
In simulation models involving the technique, there was a significant improvement in data throughput and benefit for all users. The researchers plan to use NCSU's CentMesh wireless network to test the method in real-world conditions.
From NCSU News
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