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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hui Liu Jialin He Altintas, O. Vuyyuru, R. Camp, J. Rajan, D. |
| Copyright Year | 2015 |
| Description | Author affiliation: Toyota InfoTechnol. Center Co., Ltd., Tokyo, Japan (Altintas, O.) || Dept. of Electr. Eng., Southern Methodist Univ., Dallas, TX, USA (Hui Liu; Jialin He; Camp, J.; Rajan, D.) || Toyota InfoTechnol. Center U.S.A., Inc., Mountain View, CA, USA (Vuyyuru, R.) |
| Abstract | Existing rate adaptation protocols have advocated training to establish the relationship between channel conditions and the optimal modulation and coding scheme. However, wireless devices for outdoor and vehicular communications frequently enter environments they have not yet encountered and therefore, have insufficient training for rate adaptation decisions. In addition, protocols are often optimally tuned for indoor environments but, when taken outdoors, perform poorly. In both cases, the decision structure formed offline lacks the ability to acclimate to a new situation on the fly. The diverse and ever-changing environments of increasingly mobile wireless devices call for a rate adaption scheme that can quickly adjust accordingly to form a unique environment set established by the user. In this paper, we propose an on-the-fly, in-situ training (FIT) mechanism which addresses the challenges of making rate decisions with unpredictable fluctuation and lack of repeatability of real wireless channels. We design and conduct extensive experiments on emulated and in-field wireless channels to evaluate the in-situ training process, showing that the rate decision structure can be updated as channel conditions change using existing traffic flows. |
| Starting Page | 1201 |
| Ending Page | 1206 |
| File Size | 246194 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479984060 |
| DOI | 10.1109/WCNC.2015.7127640 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2015-03-09 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Training Throughput Context Training data Testing Wireless communication Signal to noise ratio |
| Content Type | Text |
| Resource Type | Article |
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