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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yuzhi Zhang Yi Huang Lei Wan Hao Zhou Shengli Zhou Xiaohong Shen Haiyan Wang |
| Copyright Year | 2014 |
| Description | Author affiliation: Sch. of Marine Eng., Northwestern Polytech. Univ., Xian, China (Yi Huang; Shengli Zhou) || Dept. of Electr. & Comput. Eng., Univ. of Connecticut, Storrs, CT, USA (Yuzhi Zhang; Xiaohong Shen; Haiyan Wang) || Aquatic Sensor Network Technol., Storrs, CT, USA (Lei Wan; Hao Zhou) |
| Abstract | Multiuser communication has been an important research area of underwater acoustic communications and networking. This paper studies the use of adaptive OFDMA in a multiuser downlink scenario, where a central node sends data to multiple distributed nodes simultaneously. The reduction of channel feedback via clustering and quantization is considered, and an interleaved power-bit loading algorithm is presented to jointly assign the data subcarriers to different users and allocate the power and bits on each subcarrier. Simulation results show the performance improvement due to subcarrier allocation with and without additional power and bit loading. An experiment conducted in a swimming pool illustrates potential benefits and challenges of harvesting the multiuser diversity through adaptive subcarrier allocation. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 2557953 |
| Page Count | 5 |
| File Format | |
| e-ISBN | 9781479949182 |
| DOI | 10.1109/OCEANS.2014.7003120 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-09-14 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Resource management OFDM Loading Bit error rate Quantization (signal) Underwater acoustics Signal to noise ratio power and bit loading Underwater acoustic communications OFDMA subcarrier allocation |
| Content Type | Text |
| Resource Type | Article |
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