Performance of Analog Network Coding Based Two-Way EH Relay with Beamforming

Modem, Sudhakar; Prakriya, Shankar

doi:10.1109/vtcspring.2016.7504416

Cited by 12 publications

(23 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Let P s out be the overall system outage probability. According to [14], [29], the system outage probability should jointly consider two E2E outage events and can be defined as the probability that any of the four link data rates is less than the data rate requirement. Thus, for a predefined SNR threshold γ th , P s out is given by…”

Section: A Dynamic Ps Schemementioning

confidence: 99%

“…In [13], the authors studied the outage probability for three wireless power transfer schemes in TS based two-step amplify-and-forward (AF) two-way relay networks (TWRNs). In another study [14], [15] the outage behavior and finite signal-to-noise ratio (SNR) diversity multiplexing trade-off were analyzed. In contrast, by considering a decode-andforward (DF) protocol in SWIPT enabled two-step TWRNs, the authors of [16] proposed a resource allocation scheme to minimize the system outage probability by jointly optimizing the time allocation ratio and the PS/TS ratio.…”

Section: Introductionmentioning

confidence: 99%

“…However, to the best of our knowledge, there is no open work to investigate system outage performance for SWIPT enabled three-step DF TWRNs. It is worth emphasizing that the system outage performance is an important metric that jointly considers the outage events of both E2E links and evaluates the transmission performance of the two E2E links as a whole [14], [27]- [29].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

System Outage Performance for Three-Step Two-Way Energy Harvesting DF Relaying

Shi

et al. 2019

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

Wireless energy harvesting (WEH) has been recognized as a promising technique to prolong the lifetime of energy constrained relay nodes in wireless sensor networks. Its application and related performance study in three-step two-way decodeand-forward (DF) relay networks are of high interest but still lack sufficient study. In this paper we propose a dynamic powersplitting (PS) scheme to minimize the system outage probability in a three-step two-way energy harvesting DF relay network and derive an analytical expression for the system outage probability with respect to the optimal dynamic PS ratios. In order to further improve the system outage performance, we propose an improved dynamic scheme where both the PS ratios and the power allocation ratio at the relay are dynamically adjusted according to instantaneous channel gains. The corresponding system performance with the improved dynamic scheme is also investigated. Simulation results show that our proposed schemes outperform the existing scheme in terms of the system outage performance and the improved dynamic scheme is superior to the dynamic PS scheme.Index Terms-Simultaneous wireless information and power transfer, two-way decode-and-forward relay, dynamic power splitting, system outage probability.

show abstract

Section: A Dynamic Ps Schemementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

System Outage Performance for Three-Step Two-Way Energy Harvesting DF Relaying

Shi

et al. 2019

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

show abstract

“…In particular, the distance-dependent pathloss model |g i | 2 d −α i (i ∈ {A, B}) is adopted, where g i is the i-R channel coefficient, d i is the distance between node i and the relay and α denotes the pathloss exponent. According to [11], [20], the simulation parameters are set as follows: d A = 5m, d B = 15m, P ct = P cr = 10dBm, P max = 30dBm, α = 3, W = 10 kHz and σ 2 = −120 dBm/Hz. The power amplifier efficiency is set to be 0.35.…”

Section: Simulationsmentioning

confidence: 99%

Energy Efficiency Maximization for SWIPT Enabled Two-Way DF Relaying

Shi

et al. 2019

IEEE Signal Process. Lett.

View full text Add to dashboard Cite

This paper focuses on the design of an optimal resource allocation scheme to maximize the energy efficiency (EE) in a simultaneous wireless information and power transfer (SWIPT) enabled two-way decode-and-forward (DF) relay network under a non-linear energy harvesting model. In particular, we formulate an optimization problem by jointly optimizing the transmit powers of two source nodes, the power-splitting (PS) ratios of the relay, and the time for the source-relay transmission, under multiple constraints including the transmit power constraints at sources and the minimum rate requirement. Although the formulated problem is non-convex, an iterative algorithm is developed to obtain the optimal resource allocation. Simulation results verify the proposed algorithm and show that the designed resource allocation scheme is superior to other benchmark schemes in terms of EE.

show abstract

“…The BS, each legitimate users and each eavesdropper are equipped with A A , A B and A E antennas, respectively. It is highlighting that this configuration has numerous practical applications, for instance, in wireless sensor networks (WSN) where the multiantenna nodes convey information via a mobile relay that is restricted to a single antenna due to cost and size limitations, or in device-to-device (D2D) communications scenarios where the relay assists two multi-antenna devices to exchange messages [36]- [42]. Moreover, we follow the similar scenario in [15], [16], [20], [29]- [33], where both of the direct links A → B and A → E are assumed to be nonexistent, due to the direct links may be blocked by an obstruction or suffer from severe shadow fading.…”

Section: Notationmentioning

confidence: 99%

Secure Multiuser Scheduling in Downlink Dual-Hop Regenerative Relay Networks Over Nakagami- $m$ Fading Channels

Yang

Guo

Huang

et al. 2016

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

Abstract-In this paper, we investigate the secrecy performance of multiuser dual-hop relay networks where a base station (BS) communicates with multiple legitimate users via the assistance of a trustful regenerative relay in the presence of multiple eavesdroppers. Particularly, the maximal ratio transmission (MRT) scheme is exploited at the BS and a threshold-based multiuser scheduling scheme is employed over the legitimate users, while concerning the imperfect decoding at the regenerative relay. To evaluate the secrecy performance of the considered system, two practical situations are addressed based on the availability of eavesdropper's channel state information (CSI), i.e., Scenario I, where the eavesdropper's CSI is not available at the relay, and Scenario II, where the eavesdropper's CSI is available at the relay. For both scenarios, we further consider two eavesdropping modes, i.e., colluding eavesdropping and non-colluding eavesdropping. For Scenario I, new exact and asymptotic closed-form expressions of the secrecy outage probability (SOP) are derived. For Scenario II, we derive new exact and asymptotic closedform expressions of ergodic secrecy rate (ESR). The asymptotic SOPs demonstrate that the secrecy diversity order is independent of the number of legitimate users NB and eavesdroppers NE, the number of antennas equipped at eavesdroppers AE as well as fading factor of the wiretap channel mE. Furthermore, we also determine the secrecy multiplexing gain and the power cost to explicitly quantify the impact of the legitimate channel and wiretap channel on ergodic secrecy rate. Our findings demonstrate that increasing the switching threshold, the number of antennas at the BS, and the number of legitimate users have a positive impact on secrecy performance.Index Terms-Physical layer security, cooperative relay, multiuser diversity, threshold-based scheduling scheme, secrecy outage probability, ergodic secrecy rate.

show abstract

Performance of Analog Network Coding Based Two-Way EH Relay with Beamforming

Cited by 12 publications

References 14 publications

System Outage Performance for Three-Step Two-Way Energy Harvesting DF Relaying

System Outage Performance for Three-Step Two-Way Energy Harvesting DF Relaying

Energy Efficiency Maximization for SWIPT Enabled Two-Way DF Relaying

Secure Multiuser Scheduling in Downlink Dual-Hop Regenerative Relay Networks Over Nakagami- $m$ Fading Channels

Contact Info

Product

Resources

About