Anti partial-band noise jamming interleaved hybrid spread spectrum system design and capacity analysis

REN Yinpeng; NI Zuyao; KUANG Linling; WU Sheng; LU Jianhua

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Journal of Tsinghua University(Science and Technology) ›› 2015, Vol. 55 ›› Issue (8) : 866-872.

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Anti partial-band noise jamming interleaved hybrid spread spectrum system design and capacity analysis

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Abstract

Anti partial-band noise jamming (PBNJ) is improved by an interleaved direct sequence/frequency-hopping (IDS/FH) system based on the traditional direct sequence/frequency-hopping (DS/FH) spread spectrum method. An interleaver crossing multiple hops improves the time-frequency diversity gain. The system capacities with PBNJ are compared to a single-input multiple-output (SIMO) system with additive Gaussian white noise (AWGN) in a fading environment. An optimum IDS/FH receiver is also given. Theoretical analyses indicate that, when the PBNJ occupies 50% of the entire frequency band and the SNR is 10 dB, the IDS/FH capacity is 49% higher than that of DS/FH. Simulations show that the achievable lowest bit error rate of IDS/FH is two orders of magnitude lower than that of DS/FH with 50% PBNJ.

Key words

direct sequence/frequency hopping / partial-band noise jamming / single-input multiple-output system / interleave / channel capacity

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REN Yinpeng, NI Zuyao, KUANG Linling, WU Sheng, LU Jianhua. Anti partial-band noise jamming interleaved hybrid spread spectrum system design and capacity analysis[J]. Journal of Tsinghua University(Science and Technology). 2015, 55(8): 866-872

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