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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Berardinelli, G. Tavares, F.M.L. Sorensen, T.B. Mogensen, P. Pajukoski, K. |
| Copyright Year | 2013 |
| Description | Author affiliation: Dept. of Electron. Syst., Aalborg Univ., Aalborg, Denmark (Berardinelli, G.; Tavares, F.M.L.; Sorensen, T.B.; Mogensen, P.) || Nokia Solutions & Networks, Oulu, Finland (Pajukoski, K.) |
| Abstract | In the existing scheduled radio standards using Orthogonal Frequency Division Multiplexing (OFDM) or Discrete Fourier Transform-spread-OFDM (DFT-s-OFDM) modulation, the Cyclic Prefix (CP) duration is usually hard-coded and set as a compromise between the expected channel characteristics and the necessity of fitting a predefined frame duration. This may lead to system inefficiencies as well as bad coexistence with networks using different CP settings. In this paper, we propose the usage of zero-tail DFT-s-OFDM signals as a solution for decoupling the radio numerology from the expected channel characteristics. Zero-tail DFT-s-OFDM modulation allows to adapt the overhead to the estimated delay spread/propagation delay. Moreover, it enables networks operating over channels with different characteristics to adopt the same numerology, thus improving their coexistence. An analytical description of the zero-tail DFT-s-OFDM signals is provided, as well as a numerical performance evaluation with Monte Carlo simulations. Zero-tail DFT-s-OFDM signals are shown to have approximately the same Block Error Rate (BLER) performance of traditional OFDM, with the further benefit of lower out-of-band (OOB) emissions. |
| Starting Page | 229 |
| Ending Page | 234 |
| File Size | 672786 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479928514 |
| DOI | 10.1109/GLOCOMW.2013.6824991 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-12-09 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | OFDM Conferences Modulation Receivers Vectors Delays Broadband communication |
| Content Type | Text |
| Resource Type | Article |
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