Performance Analysis of a Sfh/ncbfsk Communication System with Rate 1/2 Convolutional Coding in the Presence of Partial-band Noise Jamming
نویسنده
چکیده
A performance analysis of a slow frequencyhopped, noncoherent binary frequency-shift keying (SFH/NCBFSK) communication system with rate % convolutional coding and soft decision Viterbi decoding in the presence of partial-band noise jamming is performed. The effect of additive white Gaussian noise is also considered. The system’s performance is severely degraded by partial-band noise jamming, By way of comparison, a system that utilizes hard decision Viterbi decoding and for a system utilizing noisenormalized combining with soft decision Viterbi decoding are examined. In both cases a significant increase in the system’s immunity to the effects of partial-band noise jamming is achieved.
منابع مشابه
Impact of Multipath Fading and Partial-Band Interference on the Performance of a COFDM/CDMA Modulation Scheme for Robust Wireless Communications
The performance of a COFDM’CDM4 radio communication system in the presence of partial-band jamming is presented where the eflects of multipath and additive noise are included The importance of interleaving and coding is emphasised and their impact on the bit error-rate performance is evaluated. In the first part of the paper, the effect of jamming on a COFDA4 system is obtained under worst-case...
متن کاملPerformance Analysis of Jammed Hybrid Ds/sfh System
The conventional Direct sequence DS, and the frequency hopping FH are the common spread spectrum methodologies. The new trend in the spread spectrum communication systems is to use the combined hybrid techniques. The use of a hybrid systems attempt to capitalize upon the advantages of a particular method while avoiding the disadvantages. The paper presents general closed form of the system bit ...
متن کاملDiversity combining in FH/BFSK systems to combat partial band jamming
For a FHIBFSK system, a new type of combiner termed the product combining receiver (PCR) is investigated. The performance of the PCR is evaluated for the cases of on/off partial band noise with optimum jamming fraction, and worst case partial band tone jamming. The performance of PCR is shown to be comparable to that of the clipper receiver. The effect of diversity combining along with convolut...
متن کاملSecur, Classification of This Page Report Documentation Page
19. ABSTRACT (Continue on reverse if necessary and identify by block number) Several block and convolutional coding options are considered which are applicable to the noncoherent detection of FH/MFSK signals in the presence of tone jamming. The tone jamming model used in this report is the worst-cast tone jamming for an uncoded system. Using decoded probability of bit error as a performance cri...
متن کاملAsymptoticperformance of a Coded Communication Systemwith Orthogonal Signalinginpartialband Jamming
It is well known that a communication system using M-ary orthogonal signaling in additive white Gaussian noise can achieve capacity. However, in a worst case partial bandjamming channel, orthogonal signaling fails to achieve capacity. In this paper, we show that a Mary orthogonal system using coding and side information provides reliable communications in partial band jamming. In particular, th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1998