Trellis-coded modulation with redundant signal sets Part I: Introduction

Ungerboeck, G.

doi:10.1109/mcom.1987.1093542

Cited by 714 publications

(225 citation statements)

References 7 publications

Supporting

Mentioning

205

Contrasting

Unclassified

Order By: Relevance

“…This is similar to the constellation expansion of Ungerböck [3], and much like that case, the peak-to-average power ratio remains the same and detector complexity is not much affected, because for each trellis state, only a smaller (original) constellation is transmitted.…”

Section: Trellis Design For Block Stcssupporting

confidence: 59%

“…In that case, the CGD is bounded by (9) In this case, we bound the CGD by the distances of the diverging and converging paths and , respectively, because the contribution of the interior trellis sections to the CGD is generally unclear, a phenomenon familiar from TCM design [3]. Therefore, only the contribution of the beginning and end trellis sections are used in the cost function, leading to a result similar to (8).…”

Section: A Reduced-complexity Code Designmentioning

confidence: 99%

See 1 more Smart Citation

Improved super-orthogonal codes through generalized rotations

Janani

Hedayat

Nosratinia

IEEE Global Telecommunications Conference, 2004. GLOBECOM '04.

View full text Add to dashboard Cite

Abstract-Concatenation of orthogonal space-time block codes (OSTBC) with an outer trellis has led to simple and powerful codes, known as superorthogonal codes or space-time block trellis-coded modulation. In this letter, we generalize these codes by finding new code supersets and corresponding set partitioning, resulting in improved coding gain. We provide design guidelines for the labeling of the generalized code trellises and demonstrate the gains by several example designs for two and four transmit antennas.

show abstract

Section: Trellis Design For Block Stcssupporting

confidence: 59%

Section: A Reduced-complexity Code Designmentioning

confidence: 99%

Improved super-orthogonal codes through generalized rotations

Janani

Hedayat

Nosratinia

IEEE Global Telecommunications Conference, 2004. GLOBECOM '04.

View full text Add to dashboard Cite

show abstract

“…8.3, where, in the case of 14400 bitls system, m=6, so that the rate of the encoder is 6n. It can be shown that the asymptotic coding gain in this case is also 4 dB as in the case where the encoder operates at a rate of 4/5 (Chapter 3) [8,68,91]. The encoded symbol s, has a total of 128 possible values, given by the signal constellation of Fig.…”

Section: Model Of 14400 Bitls Systemmentioning

confidence: 98%

“…1984 a trellis coded modulation scheme with a coding gain of 4 dB was adopted by the International Telegraph and Telephone Consultative Committee ( CCITT ) for use in high speed modems [5,[7][8][9].…”

Section: Background Of the Researchmentioning

confidence: 99%

Detection of coded and distorted QAM signals

Clark

Kadhim

1988

J. Inst. Electron. Radio Eng. UK

View full text Add to dashboard Cite

“…Our novel contribution is that the ED of legitimate symbols is maximised by jointly designing of NC and modulation. For arbitrary constellations, universal NCM is proposed based on the classic set partitioning technique of Ungerboeck originally conceived for maximising the minimum ED of the symbols in Trellis coded modulation (TCM) designed for point-to-point channels [22]. We will demonstrate that for phase-shift keying/quadrature amplitude modulation (PSK/QAM), practical NCM can be realised by the strikingly low-complexity modulo addition of the normalised phase/amplitude.…”

Section: Introductionmentioning

confidence: 99%

Maximum Euclidean distance network coded modulation for asymmetric decode‐and‐forward two‐way relaying

2013

View full text Add to dashboard Cite

Network coding (NC) compresses two traffic flows with the aid of low-complexity algebraic operations, hence holds the potential of significantly improving both the efficiency of wireless two-way relaying, where each receiver is collocated with a transmitter and hence has prior knowledge of the message intended for the distant receiver. In this contribution, network coded modulation (NCM) is proposed for jointly performing NC and modulation. As in classic coded modulation, the Euclidean distance between the symbols is maximised, hence the symbol error probability is minimised. Specifically, the authors first propose set-partitioning-based NCM as an universal concept which can be combined with arbitrary constellations. Then the authors conceive practical phase-shift keying/quadrature amplitude modulation (PSK/QAM) NCM schemes, referred to as network coded PSK/QAM, based on modulo addition of the normalised phase/amplitude. To achieve a spatial diversity gain at a low complexity, a NC oriented maximum ratio combining scheme is proposed for combining the network coded signal and the original signal of the source. An adaptive NCM is also proposed to maximise the throughput while guaranteeing a target BEP Q1. Both theoretical performance analysis and simulations demonstrate that the proposed NCM can achieve at least 3 dB signal-to-noise ratio gain and two times diversity gain.

show abstract

Trellis-coded modulation with redundant signal sets Part I: Introduction

Cited by 714 publications

References 7 publications

Improved super-orthogonal codes through generalized rotations

Improved super-orthogonal codes through generalized rotations

Detection of coded and distorted QAM signals

Maximum Euclidean distance network coded modulation for asymmetric decode‐and‐forward two‐way relaying

Contact Info

Product

Resources

About