PAPR Reduction in Coded SC-FDMA Systems via Introducing Few Bit Errors
| Autor: | Jinwei Ji, Guangliang Ren, Huining Zhang |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Carrier signal
Computer science Real-time computing Data_CODINGANDINFORMATIONTHEORY Division (mathematics) Signal Computer Science Applications Term (time) Reduction (complexity) Modeling and Simulation Telecommunications link Bit error rate Electrical and Electronic Engineering Algorithm Decoding methods Communication channel |
| Zdroj: | IEEE Communications Letters. 18:1258-1261 |
| ISSN: | 1089-7798 |
| DOI: | 10.1109/lcomm.2014.2327964 |
| Popis: | We propose a simple and flexible peak-to-average power ratio (PAPR) reduction scheme for coded single carrier frequency division multiple access (SC-FDMA) signals in the uplink of the Long Term Evolution (LTE). The proposed scheme is based on the introduction of few bit errors to modify the few complex modulated symbols of each data SC-FDMA symbol in a sub-frame, which cause peaks of the output signal samples to be larger than a predetermined threshold value. In addition, the effect on the bit error rate (BER) performance of the few deliberately corrupted bits can be greatly mitigated by using the channel decoding at the receiver. Computer simulations show that the proposed scheme can reduce the PAPR of SC-FDMA signals effectively with almost the same BER as the conventional SC-FDMA signals when the signal-to-noise ratio (SNR) is below 35 dB. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|