Multi-User Analog Network Coding with Spread Spectrum

Mao, Shunfu; Kim, Jangseob; Lee, Jungwoo

doi:10.1109/vetecs.2012.6239890

Cited by 7 publications

(8 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [154]- [156], PNC and ANC schemes have been introduced to the conventional SS systems, e.g., CDMA systems, and their error performance and throughput have been thoroughly analyzed over AWGN and multipath fading channels. The results have shown that the network-coded SS system attains a satisfactory enhancement in throughput over the conventional SS systems.…”

Section: G Network-coded Dcsk Systemsmentioning

confidence: 99%

“…In the wake of the success of network-coded CDMA systems, Kaddoum et al [70], [71] have dedicated special attention to applying the PNC and ANC techniques to DCSK-based systems. In these two papers, the authors have also analyzed the theoretical BER performance of PNC-aided DCSK system and ANC-aided DCSK system under the multipath fading condition with delay spread, which has not been considered in [154]- [156].…”

Section: G Network-coded Dcsk Systemsmentioning

confidence: 99%

See 1 more Smart Citation

A Survey on DCSK-Based Communication Systems and Their Application to UWB Scenarios

Fang

Han

Chen

et al. 2016

IEEE Commun. Surv. Tutorials

123

View full text Add to dashboard Cite

In the past two decades, chaotic modulations have drawn a great deal of attention in low-power and low-complexity wireless communication applications due to their excellent antifading and anti-intercept capabilities. Of particular interest is the differential chaos shift keying (DCSK), which is considered as a very promising chaotic modulation scheme that achieves not only good error performance, but also low implementation complexity. In this treatise, we provide an insightful survey on the state-ofthe-art research in DCSK-based communication systems through an extensive open literature search. In doing so, we firstly review the principles of DCSK modulation and the significant milestones since its inception. Subsequently, we introduce meritorious variants of DCSK, all of which can outperform the original one in certain aspects. We also present the joint design guidelines when combining DCSK with other critical techniques, e.g., errorcorrection coding and cooperative communication, in wireless communications under both single-user and multi-access scenarios. Besides, we summarize research progress in the application of DCSK-based communication systems to ultra-wideband scenarios and their corresponding advantages. Specifically, we restrict our attention to the relevant modulation and system designs, as well as their performance-analysis methodologies. This survey aims not only to allow researchers understanding the development and current status of DCSK-based communication systems, but also to inspire further research in this area. Index Terms-Chaotic communication, chaotic modulation, differential chaos shift keying (DCSK), multipath fading channel, ultra-wideband (UWB). 1 The procedure of reproducing the locally-generated chaotic carrier is defined as chaos synchronization.

show abstract

Section: G Network-coded Dcsk Systemsmentioning

confidence: 99%

Section: G Network-coded Dcsk Systemsmentioning

confidence: 99%

A Survey on DCSK-Based Communication Systems and Their Application to UWB Scenarios

Fang

Han

Chen

et al. 2016

IEEE Commun. Surv. Tutorials

123

View full text Add to dashboard Cite

show abstract

“…A few other works [20]- [22] have proposed CDMA-based PNC/ANC schemes. In [20], a two-phase multiuser two-way relay network is proposed, in which multiple pairs of users communicate with their preassigned users using a common intermediate relay node.…”

Section: Related Workmentioning

confidence: 99%

CDMA-Based Analog Network Coding for Underwater Acoustic Sensor Networks

Kulhandjian

Melodia

Koutsonikolas

2015

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

We propose ANC-CDMA, a CDMA-based analog network coding scheme for underwater acoustic sensor networks (UW-ASNs) that can significantly improve the underwater acoustic channel utilization. First, we analyze a unidirectional multihop network, in which two acoustic nodes separated by two hops are assigned the same code-division channel (i.e., spreading code) to transmit concurrently. The packets transmitted by the two nodes will collide at the intermediate (relay) node. However, we show that, by exploiting a priori information, i.e., the interfered packet previously received from one of the nodes, and applying joint channel estimation through pilot supervision along with a newly designed adaptive RAKE receiver, the relay node can cancel the interference before decoding the packet of interest. We then extend our analysis to a bidirectional network, in which two nodes first concurrently transmit their packets to the relay using the same spreading code. The relay amplifies and forwards the received interfered packet to the two nodes. We show that either node can still decode the packet of interest after equalizing the channel effects introduced during the propagation from the relay to itself and jointly estimating multipath affected channels and suppressing the self-interference signal before applying the adaptive RAKE receiver. The proposed ANC-CDMA scheme is implemented in a testbed based on Teledyne Benthos Telesonar SM-975 underwater modems and tested extensively in Lake LaSalle. Experiments and simulations demonstrate that for a 1-2 dB tradeoff in signalto-noise ratio (SNR), the proposed scheme can significantly improve the channel utilization of a unidirectional and bidirectional networks by up to 50% and 100%, respectively, compared with conventional multiuser DS-CDMA scheme.

show abstract

“…Related Works: In [20], [21], ANC schemes for CDMA systems were proposed where each user in the system is assigned one distinct spreading sequence. To decode a message from a given user in the network, a node applies the spreading sequence of the other user.…”

Section: Introductionmentioning

confidence: 99%

Analog network coding for multi-user spread-spectrum communication systems

Kaddoum

Giard

2014

2014 IEEE Wireless Communications and Networking Conference (WCNC)

View full text Add to dashboard Cite

This work presents another look at an analog network coding scheme for multi-user spread-spectrum communication systems. Our proposed system combines coding and cooperation between a relay and users to boost the throughput and to exploit interference. To this end, each pair of users, A and B, that communicate with each other via a relay R shares the same spreading code. The relay has two roles, it synchronizes network transmissions and it broadcasts the combined signals received from users. From user B's point of view, the signal is decoded, and then, the data transmitted by user A is recovered by subtracting user B's own data. We derive the analytical performance of this system for an additive white Gaussian noise channel with the presence of multi-user interference, and we confirm its accuracy by simulation.

show abstract

Multi-User Analog Network Coding with Spread Spectrum

Cited by 7 publications

References 12 publications

A Survey on DCSK-Based Communication Systems and Their Application to UWB Scenarios

A Survey on DCSK-Based Communication Systems and Their Application to UWB Scenarios

CDMA-Based Analog Network Coding for Underwater Acoustic Sensor Networks

Analog network coding for multi-user spread-spectrum communication systems

Contact Info

Product

Resources

About