Performance analysis for impulse radio and direct-sequence impulse radio in narrowband interference

被引：14

作者：

Piazzo, L ^{[1
]}

Ameli, F ^{[1
]}

机构：

[1] Univ Roma La Sapienza, INFOCOM Dept, I-00184 Rome, Italy

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2005年 / 53卷 / 09期

关键词：

impulse radio (IR); narrowband interference (NBI); spread spectrum (SS); ultra wideband (UWB);

D O I：

10.1109/TCOMM.2005.855004

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The impact of narrowband interference (NBI) on two ultra wideband (UWB) systems is analyzed. The two systems are impulse radio (IR) and a variation of it, termed direct-sequence IR (DS-IR). The signal-to-noise ratio (SNR) at the decision device of a correlation receiver is computed for both systems, assuming that the NBI is wide sense stationary and that the channel is frequency-selective. The SNR is expressed by means of a simple equation involving the signal and the interference spectrum. Next, a statistical model for the interference is introduced, considering the interference as the sum of a given number of sinusoidal signals with random powers and frequencies. The bit-error rate of IR and DS-IR is derived. The results are then specialized and compared with simulations in three case studies of practical interest, where the NBI is a single jammer with deterministic power and frequency, a multitone signal with random frequencies, or a grid of interfering signals with random powers.

引用

页码：1571 / 1580

页数：10

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