Abstract
To minimize average bit rate error(BER) per orthogonal frequency division multiplexing(OFDM) frame under the constraint of total transmission power and data rate in time-varying channel, iterative algorithm of bit and power allocation aiming at minimum total virtual power(MTVP) in OFDM symbol was designed, and a method of power allocation among OFDM symbols based on MTVP was proposed. Simulation results show that the proposed bi t and power allocation method improves the BER performance as well as calculation speed.
| Original language | English |
|---|---|
| Pages (from-to) | 87-90 |
| Number of pages | 4 |
| Journal | Dalian Haishi Daxue Xuebao/Journal of Dalian Maritime University |
| Volume | 36 |
| Issue number | 2 |
| Publication status | Published - May 2010 |
| Externally published | Yes |
Keywords
- B it-loading
- Orthogonal frequency division multiplexing(OFDM)
- Power-allocation
- Virtual power