A survey of one-coincidence sequences for frequency-hopped spread-spectrum systems

Shaar, A.A.; Davies, P.A.

doi:10.1049/ip-f-1.1984.0108

Cited by 54 publications

(29 citation statements)

References 7 publications

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“…In this case, the set of OC-FH sequences constructed in Theorem 4.2 becomes a set of full OC-FH sequences, which is just the same as that in [11]. According to Theorem 3.1, this set of full OC-FH sequences is in fact optimum.…”

Section: Constructions For Optimum Oc-fh Sequencesmentioning

confidence: 98%

Combinatorial characterizations of one-coincidence frequency-hopping sequences

Cao

Miao

2006

Des Codes Crypt

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Section: Constructions For Optimum Oc-fh Sequencesmentioning

confidence: 98%

Combinatorial characterizations of one-coincidence frequency-hopping sequences

Cao

Miao

2006

Des Codes Crypt

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“…Note that, for prime l, the set of linear congruence sequences is also known as prime sequences [4].…”

Section: A Linear Congruence Sequencementioning

confidence: 99%

“…The idea of using deterministic binary sequences to define medium accessing can be traced back to [2]- [4]. Some related works in the collision channel can be found in [7]- [10].…”

Section: Introductionmentioning

confidence: 99%

The Design and Analysis of Protocol Sequences for Robust Wireless Accessing

Chen

Wong

Song

2007

IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference

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In this paper, a family of linear congruence sequences with interesting cross-correlation properties is investigated for potential applications in defining new multiple access protocols for distributed wireless systems. One can show that for any finite subset of the sequences with rate sum not exceeding a certain level, there cannot have enough collisions to completely block any particular user no matter how they are shifted with respect to one another. The user un-suppressibility and service guarantee can be exploited in many applications such as wireless sensor or impulse radio systems. To enhance the system's allowable rate sum while possessing the non-blocking property, new protocol sequences are designed. Besides, the throughput shift-invariant property is obtained.

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“…We will use it to analyze the performance of the developed FFH codes. If H XY (τ ) ≤ 1 for any X = Y , this code set is called as one-coincidence sequence [23], and this gives the smallest interference in an OFFH-CDMA system.…”

Section: A Hamming Auto-and Cross-correlationmentioning

confidence: 99%

Improved fiber Bragg grating array OFFH-CDMA system using a novel frequency-overlapping multigroup method

Peng

Lin²,

Chi³

2006

J. Lightwave Technol.

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Abstract-The authors propose a novel frequency-overlapping multigroup scheme for a passive all-optical fast-frequency hopped code-division multiple-access (OFFH-CDMA) system based on fiber Bragg grating array (FBGA). In the conventional scheme, the users are assigned those codes constructed on the nonoverlapping frequency slots, and therefore the bandgaps between the adjacent gratings are wasted. To make a more efficient use of the optical spectrum, the proposed scheme divided the users into several groups, and assigned the codes, which interleaved to each other to the different groups. In addition to the higher utilization of the spectrum, the interleaved nature of the frequency allocations of different groups will make the groups less correlated and, hence, lower the multiple-access interference (MAI). The corresponding codeset and its constraints for this new scheme are also developed and analyzed. The performance of the system in terms of the correlation functions and bit error rate (BER) are given in both the conventional and the proposed schemes. The numerical results show that, with the multigroup scheme, performance is much improved compared to the conventional scheme.Index Terms-Fiber Bragg grating array (FBGA), multipleaccess interference (MAI), optical fast-frequency hopping codedivision multiple access (OFFH-CDMA).

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A survey of one-coincidence sequences for frequency-hopped spread-spectrum systems

Cited by 54 publications

References 7 publications

Combinatorial characterizations of one-coincidence frequency-hopping sequences

Combinatorial characterizations of one-coincidence frequency-hopping sequences

The Design and Analysis of Protocol Sequences for Robust Wireless Accessing

Improved fiber Bragg grating array OFFH-CDMA system using a novel frequency-overlapping multigroup method

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