Equal gain diversity improvement in fast frequency hopping spread spectrum multiple-access (FFH-SSMA) communications over Rayleigh fading channels

Solaiman, B.; Glavieux, Alain; Hillion, A.

doi:10.1109/49.16855

Cited by 12 publications

(15 citation statements)

References 5 publications

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“…Based on the TF-matrix R R R, the symbols transmitted by the K users can be detected by employing various noncoherent detection schemes, such as those considered in [1,[8][9][10][11][12][17][18][19][20]. Below we propose and investigate a novel one, namely the ES-EGCD, which has a low-complexity as the conventional EGCD.…”

Section: B Receivermentioning

confidence: 99%

“…The FFH/MFSK scheme employs a range of advantages, including low-complexity noncoherent detection, anti-jamming capability, low probability of interception, capability to support multiple users, inherent frequency-diversity, etc., as demonstrated in many references, such as, [1][2][3][4][5][6][7][8][9][10][11][12][13] and the references therein.…”

Section: Introductionmentioning

confidence: 98%

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A Single-User Noncoherent Combining Scheme Achieving Multiuser Interference Mitigation for FFH/MFSK Systems

Yang

2013

IEEE Trans. Wireless Commun.

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In this paper, we propose a novel low-complexity single-user noncoherent combining scheme, named as the erasure-supported equal-gain combining assisted detector (ES-EGCD), for signal detection in fast frequency-hopping M -ary frequency-shift keying (FFH/MFSK) systems. In the proposed ES-EGCD, the decision variables are formed based on the principles of equal-gain combining (EGC), after erasing a number of entries having the largest values from each of the rows of a so-called detection matrix formed during detection. We derive the single-user bit-error rate (BER) of the FFH/MFSK systems employing the ES-EGCD and investigate by simulation the BER performance of the multiuser FFH/MFSK systems employing either the conventional EGC-assisted detector (EGCD) or the proposed ES-EGCD, when assuming communications over Rayleigh fading channels. Both random and optimum FFH addresses are considered in our studies. Our studies and performance results illustrate that the ES-EGCD is capable of significantly outperforming the conventional EGCD in multiuser scenarios. Although the ES-EGCD is a low-complexity singleuser detector, it employs the capability to effectively mitigate multiuser interference (MUI).Index Terms-Fast frequency-hopping, M -ary frequency-shift keying, equal-gain combining, noncoherent detection, multipleaccess.

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Section: B Receivermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

A Single-User Noncoherent Combining Scheme Achieving Multiuser Interference Mitigation for FFH/MFSK Systems

Yang

2013

IEEE Trans. Wireless Commun.

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“…Frequency-selective multipath fading is common in urban and indoor environments and is a significant source of potential degradation in a wideband mobile communication system [20]. The performance of FFH-MA binary FSK (BFSK) systems employing equal-gain diversity technique has been analysed in [15] over frequencyselective Rayleigh-fading channels. In [16], the author studied the performance of both MFSK and differentially phase-shift keying systems using the ML method in a frequency-selective Rayleigh-fading environment.…”

Section: Introductionmentioning

confidence: 99%

Maximum-likelihood receivers for synchronous fast frequency-hopped multiple-access M-ary frequency-shift-keying systems over frequency-selective Rician-fading channels

Teh

2012

IET Communications

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In this study, the performance of a synchronous fast frequency-hopped multiple-access (MA) M-ary frequency-shiftkeying system employing maximum-likelihood (ML) method over either frequency-selective Rician-or Rayleigh-fading channels is investigated. The ML receiver structures are derived and analysed. It is assumed that all the signals arrive at a receiver with the same power strength and all the users operating in the system undergo independent frequency-selective fading. The performance of the ML receivers is compared with that of the linear-combining and the product-combining receivers. The bit-error rate results of the two conventional receivers are obtained via simulation. The proposed analysis, validated by simulation results, shows that the proposed ML receivers can suppress the MA interference more effectively than other existing receivers under different fading conditions. Moreover, the proposed ML receivers are shown to be robust against the inaccuracy in estimation of the required side information.

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“…Conditioned on , the output of the correlator of the th tap of the th RAKE receiver in the th symbol interval is given by (9) where denotes the subchannel occupied by the th carrier of the th user's signal ( ) and…”

Section: Performance Analysismentioning

confidence: 99%

“…However, the algorithm usually needs 10 to 20 symbol intervals to converge. An alternative resort is the frequency hopping (FH) technique [8], [9], in which the signal occupies only one subchannel at any interval and hops in frequency. By reducing the number of simultaneous cochannel users, FH systems have a natural guard against the near-far problem.…”

Section: Introductionmentioning

confidence: 99%

Multicarrier DS/SFH-CDMA systems

Wang

Huang

2002

IEEE Trans. Veh. Technol.

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Equal gain diversity improvement in fast frequency hopping spread spectrum multiple-access (FFH-SSMA) communications over Rayleigh fading channels

Cited by 12 publications

References 5 publications

A Single-User Noncoherent Combining Scheme Achieving Multiuser Interference Mitigation for FFH/MFSK Systems

A Single-User Noncoherent Combining Scheme Achieving Multiuser Interference Mitigation for FFH/MFSK Systems

Maximum-likelihood receivers for synchronous fast frequency-hopped multiple-access M-ary frequency-shift-keying systems over frequency-selective Rician-fading channels

Multicarrier DS/SFH-CDMA systems

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