Bit and Power Allocation Algorithm for OFDM UWB Systems
- 10.2991/iccsee.2013.750How to use a DOI?
- UWB,OFDM,bit-power allocation,bit error rate
Ultra-wide-band (UWB) is a promising short-range indoor wireless communication technology for large communication capacity, high transmission rate, low power consumption, etc. Multi-band orthogonal frequency-division multiplexing ultra-wide-band (MB-OFDM UWB) system can achieve much higher anti-noise capability and flexibility. However, the transmission power of UWB systems is strictly restricted for avoiding the interference with other wireless communication systems existing in the same frequency spectrum range. It is necessary that adequately utilizes channel estimation to allocate bit and power effectively. According to the change of channel gain, UWB systems modify the allocation factor to optimize the performance of systems and reduce power allocation remainder. Simulation shows modified bit-power allocation algorithm can enhance power allocation efficiency. Furthermore, it is found that the power remainder of modified allocation factor algorithm is less influenced by the bit error rate.
- © 2013, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Haiyan Li PY - 2013/03 DA - 2013/03 TI - Bit and Power Allocation Algorithm for OFDM UWB Systems BT - Proceedings of the 2nd International Conference on Computer Science and Electronics Engineering (ICCSEE 2013) PB - Atlantis Press SP - 3106 EP - 3109 SN - 1951-6851 UR - https://doi.org/10.2991/iccsee.2013.750 DO - 10.2991/iccsee.2013.750 ID - Li2013/03 ER -