Complementary
            <i>M</i>
            ‐ary orthogonal spreading OFDM architecture for HF communication link

Fang, Tian; Zeng, Fanxin; Shi-biao, HE; Xuan, Guixin

doi:10.1049/iet-com.2016.0711

Cited by 10 publications

(9 citation statements)

References 22 publications

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“…As shown in Fig. 1, block diagram of the CROS-OFDM system is the same as CMOS-OFDM in [7] except that one complementary sequence is spread over one OFDM symbol in frequency domain. The K-bit data symbol input to CROS mapping block is mapped on a complementary sequence, resulting in time domain OFDM signal after frequency domain spreading and IFFT as follows…”

Section: Cros-ofdm System Modelmentioning

confidence: 99%

“…In [7], given a CSPs set consisting of two CSPs of [𝐂 00 (0) ; 𝐂 01 (0) ] and [𝐂 10 (0) ; 𝐂 11 (0) ] which are mates of each other as follows, 𝐶 (0) = ( 𝐂 00 (0) ; 𝐂 01 (0) 𝐂 10 (0) ; 𝐂 11 (0) )…”

Section: Real Domain Orthogonal Complementary Sequence Setmentioning

confidence: 99%

“…Orthogonal frequency division multiplexing (OFDM) has been widely applied to HF communications as an ideal technology to effectively overcome the frequency selective fading and narrow band interference. However, OFDM has a drawback of high peak to mean envelop power ratio (PMEPR) that decreases the power efficiency of HF OFDM transmitter [4,7].…”

Section: Introductionmentioning

confidence: 99%

“…The combination of SS and OFDM techniques is capable of simultaneously improving processing gain and multipath fading resistance where the works are focused on issues of increasing the data transmission speed and decreasing PMEPR [5][6][7][8]. In the SS-OFDM system, the best method for decreasing PMEPR is to use the complementary sequence as orthogonal spreading sequence.…”

Section: Introductionmentioning

confidence: 99%

“…In [7], the authors have proposed complementary M-ary orthogonal spreading OFDM (CMOS-OFDM) scheme where zero-center complementary pairs (ZCCP) for OFDM system deactivating DC subcarrier are designed. The authors also demonstrated that the PMEPR of the proposed OFDM waveform is at most 3dB and evaluated the performance of the CMOS-OFDM over the HF fading channel modelled by ITU-R F.1487 [10].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Complex Complementary Sequence Real Orthogonal Spreading OFDM Scheme for HF Communication Link

Wang¹,

Cha²,

Pak³

et al. 2023

Wireless Pers Commun

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The complementary M-ary orthogonal spreading with orthogonal frequency division multiplexing (CMOS-OFDM) is an efficient scheme for providing high bit error rate (BER) performance and low peak to mean envelop power ratio (PMEPR) in high frequency (HF) communications system. In the CMOS-OFDM, orthogonal spreading OFDM is implemented based on orthogonal complementary sequence pairs where there is an issue that one data symbol is transmitted through two OFDM symbols. In this paper, we present the M-ary orthogonal spreading OFDM scheme using complex complementary sequences which satisfy real domain orthogonality. The complementary real orthogonal spreading OFDM (CROS-OFDM) is restrict the PMEPR to 3dB and provides two times the bit rate of CMOS-OFDM. The CROS-OFDM scheme uses zero-center complementary sequences like the CMOS-OFDM and hence it is suitable to the HF OFDM and Wi-Fi system where the direct current subcarrier is not used. The simulation results show that the CROS-OFDM provides higher bit rate and BER performance.

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Section: Cros-ofdm System Modelmentioning

confidence: 99%

Section: Real Domain Orthogonal Complementary Sequence Setmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%