Ultra-spectra communication system (USCS): a promising way to energy-efficient green communication networks

作者：Li, Bin^*; Zhou, Zheng; Zou, Weixia

来源：EURASIP Journal on Wireless Communications and Networking, 2012, 47.

DOI：10.1186/1687-1499-2012-47

• energy efficient
• ultra-spectra communication system
• single-cycle modulation
• ultra-wideband
• carrier synchronization
• water-filling transmission
• noncoherent detection

In this article, we investigate a promising transmission approach for green communication networks. By combining the appealing single-cycle modulation technique with traditional pulse modulation found on the underlay communication philosophy, the presented ultra-spectra communication system can improve the energy efficiency significantly. In transceiver, the emission signal contains two parts, the information-bearing baseband waveform with an extremely short duration and the information-synchronized carrier component. Alternatively, without carrier signaling the intermittent emission can be adopted to further reduce its operational power. By optimally allocating the power in different bands, a water-filling emission spectrum inspired by a novel conception of radius basis function neural-network is proposed for maximizing transmission energy efficiency in the presence of external interference. In receiver, the carrier-synchronized signal greatly alleviates the power-consumed timing acquisition, and provides extremely precise synchronization for information detection in intensive multipath environments. In addition, from a pattern classification perspective, a low-complexity noncoherent detection scheme is suggested to enhance receiving performance and minimize energy consumption. Performance analysis demonstrated that the whole transmission scheme can indeed be realized within an ultra-low-power framework, which shows great advantages to traditional strategies.

• 出版日期2012
• 单位北京邮电大学