Inter-Signal Interference Cancellation Filter for Four-Element Single Sideband Modulation

Jiang, Yi; Zhou, Zhenyu; Nanri, Masahiko; Ohta, Gen-ichiro; Sato, Toru

doi:10.1109/vetecs.2012.6239953

Cited by 2 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several researchers have shown research results on the Quadrature SSB (Q-SSB) modulation [3][4][5][6] . It is expected that the spectrum efficiency can be doubled by multiplying the SSB modulation and the quadrature modulation.…”

Section: Related Workmentioning

confidence: 99%

Proposal of Single Sideband Modulation Scheme Using Frequency Domain Filtering

Waraya

Muraguchi

2021

j. of electron. & inf. syst.

View full text Add to dashboard Cite

With the rapid development of wireless systems, the demand for frequency resources has been increasing in recent years. Therefore, it is necessary to consider the high-quality communication method that efficiently utilizes finite frequency resources. In this paper, Single Sideband 16 Pulse Amplitude Modulation (SSB 16PAM) scheme for the uplink communication is proposed. It transmits data in only Lower Sideband (LSB) without extra Hilbert components. Under Additive White Gaussian Noise (AWGN) channel environment, Bit Error Rate (BER) performance of the proposed scheme is superior by 3 dB in terms of Carrier-to-Noise Ratio (CNR) to 256 Quadrature Amplitude Modulation (256QAM) scheme with the same frequency efficiency and the same Peak-to-Average Power Ratio (PAPR). Our proposed scheme employs the original frequency domain filter on the transmitter side to form an ideal spectrum. The configuration of its process is almost similar to Single Carrier-Frequency Division Multiple Access (SC-FDMA), moreover, half of the input data on the frequency domain is removed. The proposed frequency domain filter produces the SSBmodulated spectrum with a roll-off rate of zero without degrading the BER performance.

show abstract

Section: Related Workmentioning

confidence: 99%

Proposal of Single Sideband Modulation Scheme Using Frequency Domain Filtering

Waraya

Muraguchi

2021

j. of electron. & inf. syst.

View full text Add to dashboard Cite

show abstract

“…This section describes the 4-SSB QAM demodulation as defined in [11,19]. The brief process steps can be expressed as follows:u−truev^=s4SSB,normalI+sfalse^4SSB,normalQ, v+trueu^=−s4SSB,normalQ+sfalse^4SSB,normalI, p+truer^=s4SSB,normalI−sfalse^4SSB,normalQ, r−truep^=−s4SSB,normalQ−sfalse^4SSB,normalI, where sfalse^4SSB,normali is Hilbert transform of In phase 4-SSB and the sfalse^4SSB,normalQ is a Hilbert transform of quadrature modulation phase 4-SSB [20].…”

Section: 4-ssb System Designmentioning

confidence: 99%

“…The two complex signals can be represented by the upper sideband and lower sideband before feeding into the shadow equalizer as follows:d1,LSB=12false[(u−truev^+j(trueu^+v)], d2,USB=12false[(p+truer^+j(r−truep^)], where d1,LSB denotes the lower sideband of 4-SSB and d2,USB denotes the upper sideband of 4-SSB. Typically, by defining a spectral profile of 4-SSB signal in the similar way as we did in our previous work [19]. From this, we can identify the two symbols of QAM as shown in Equations (13) and (14).…”

Section: 4-ssb System Designmentioning

confidence: 99%

A Novel Four Single-Sideband M-QAM Modulation Scheme Using a Shadow Equalizer for MIMO System Toward 5G Communications

Alhasani

Nguyễn

Ohta³

et al. 2019

Sensors

Self Cite

View full text Add to dashboard Cite

Single-sideband (SSB) modulation through Hilbert transformation has successfully transmitted data using only half the bandwidth of the traditional scheme for the same amount of contained information. Toward this end, the four single-sideband (4-SSB) approach for high order modulation is a promising approach for the next-generation communications by applying soft-input soft-output (SISO) equalizer algorithms over orthogonal frequency division multiplexing (OFDM). However, OFDM is challenging for realizing the feasible 5G communications, compared to the emerging techniques, e.g., non-orthogonal multiple access (NOMA), orthogonal multiple access (OMA) or multiple-input multiple-output (MIMO). Since the 4-SSB is an orthogonal modulation which was successfully applied over the traditional OFDM, in this article, we propose a novel 4-SSB modulation scheme over OFDM Guard Interval (GI) and massive MIMO. Besides the carrier signal, from the receiver side, we also apply the shadow equalizer algorithm in the uncoded and coded environment using turbo codes to achieve the 4-SSB with high efficiency from low complexity and energy consumption for 5G. The evaluation results validate that our system consumes lower energy due to low complexity gained from same number of iterations without the heavy decoding as of the 4-SSB SISO based on the turbo equalizer. In addition, the 4-SSB over the OFDM GI achieves the best performance among the relevant approaches conducted in 4-SSB. The proposal then acts as a practical communication system designed to solve the inter-symbol interference (ISI) induced by additional Hilbert transform in the wireless environment toward fifth generation (5G), given that turbo code is considered as a potential channel coding scheme for 5G radio specification.

show abstract

Inter-Signal Interference Cancellation Filter for Four-Element Single Sideband Modulation

Cited by 2 publications

References 6 publications

Proposal of Single Sideband Modulation Scheme Using Frequency Domain Filtering

Proposal of Single Sideband Modulation Scheme Using Frequency Domain Filtering

A Novel Four Single-Sideband M-QAM Modulation Scheme Using a Shadow Equalizer for MIMO System Toward 5G Communications

Contact Info

Product

Resources

About