| Autor: |
Kazi M. Ahmed, T. Ginige, Nandana Rajatheva |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026). |
| DOI: |
10.1109/vetecs.2000.851607 |
| Popis: |
In this paper we investigate a signal design method to increase spectral efficiency and to limit high peak to average power ratio (PAPR) input signal combinations to OFDM sub-carriers. It reduces PAPR level of an OFDM system without decreasing bandwidth utilization. The system design also shows how a set of concatenated Walsh Hadamard (WH) codes can be used to spread a block of information bits to increase number of orthogonal spreading codes while keeping the spreading factor at a low level. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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