Symbol-level random network coded cooperation with hierarchical modulation in relay communication

Kim, R.Y.; Kim, Young Yong

doi:10.1109/tce.2009.5277988

Cited by 15 publications

(15 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similarly, the simulation results can validate the theoretical SER results of Eqs. (11)- (12). In contrast to network coded PSK, NCM relaying on PAM constellations may impose some SNR loss compared to classic one-way transmission using the same constellation.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…(7)- (8) and that a i ∈ A i , we have d 1 = M2 M1 d and d 2 = d, which is inserted into (13) to arrive at Eqs. (11)- (12).…”

Section: B Network Coded Pam/qammentioning

confidence: 99%

“…As a further advance, the idea of lattice coding was proposed for designing efficient two-way relaying [8]- [10]. Furthermore, NC and modulation were jointly designed for realizing practical asymmetric relaying [10]- [12]. More particularly, a joint NC and superposition coding approach was proposed for a cross-layer operation in [10].…”

Section: Introductionmentioning

confidence: 99%

“…More particularly, a joint NC and superposition coding approach was proposed for a cross-layer operation in [10]. Practical symbol based NC relying on QAM was designed in [11]- [12] for bi-directional transmission.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Network Coded Modulation for two-way relaying

Chen

Hanzo

Cao

2011

2011 IEEE Wireless Communications and Networking Conference

View full text Add to dashboard Cite

Abstract-Network coding compresses multiple traffic flows with the aid low-complexity algebraic operations, hence holds the potential of significantly improving both the power and bandwidth efficiency of wireless networks. In this contribution, the novel concept of Network Coded Modulation (NCM) is proposed for jointly performing network coding and modulation in bi-directional/duplex relaying. Each receiver is colocated with a transmitter and hence has prior knowledge of the message intended for the distant receiver. As in classic coded modulation, the Euclidian distance between the symbols is maximized, hence the Symbol Error Ratio (SER) is minimized. Specifically, we conceive NCM methods for PSK, PAM and QAM based on modulo addition of the normalized phase or amplitude. Furthermore, we propose low complexity decoding algorithms based on the corresponding conditional minimum distance criteria. Our performance analysis and simulations demonstrate that NCM relying on PSK is capable of achieving a SER at both receivers of the NCM scheme as if the relay transmitted exclusively to a single receiver only. By contrast, when our NCM concept is combined with PAM/QAM, an SNR loss (<1.25dB) is imposed at one of the receivers, usually at the one having a lower data rate in a realistic different rate scenario. Finally, we will demonstrate that the proposed NCM is compatible with existing physical layer designs.

show abstract

Section: Simulation Resultsmentioning

confidence: 99%

“…(7)- (8) and that a i ∈ A i , we have d 1 = M2 M1 d and d 2 = d, which is inserted into (13) to arrive at Eqs. (11)- (12).…”

Section: B Network Coded Pam/qammentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Network Coded Modulation for two-way relaying

Chen

Hanzo

Cao

2011

2011 IEEE Wireless Communications and Networking Conference

View full text Add to dashboard Cite

show abstract

“…In these asymmetric scenarios it is suboptimal to use conventional bit-level NC, such as the separate XOR addition and successive modulation. Hence, the efficient mapping of bits to symbols in the DL broadcast phase of three-timeslot TWR has been extensively studied [9][10][11][12][13][14][15][16][17][18][19]. The DL capacity of asymmetric DF-TWR was investigated in [9,10].…”

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

HiNet: Radio Frequency Communication Based Train Control (RF-CBTC) System Jointly Using Hierarchical Modulation and Network Coding

Yoo

Kim

2012

Convergence and Hybrid Information Technology

View full text Add to dashboard Cite

Symbol-level random network coded cooperation with hierarchical modulation in relay communication

Cited by 15 publications

References 13 publications

Network Coded Modulation for two-way relaying

Network Coded Modulation for two-way relaying

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

HiNet: Radio Frequency Communication Based Train Control (RF-CBTC) System Jointly Using Hierarchical Modulation and Network Coding

Contact Info

Product

Resources

About