On Buffer-Aided Relaying for the Two-Hop Full Duplex Relay Channel with Self-Interference

Razlighi, Mohsen Mohammadkhani; Zlatanov, Nikola

doi:10.1109/glocom.2017.8254870

Cited by 4 publications

(6 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [18], authors explore a BA relaying setup with outdated channel state information (CSI). In contrast, in [19], authors discussed a single relay setup with a BA relay suffering from self-interference. Authors in [20], [21] discussed the security aspect of the BA setup.…”

Section: A Literature Reviewmentioning

confidence: 99%

“…, and b is the column matrix with dimension Z and all its entries are equal to unity. The outage probability of the proposed system can be evaluated with the help of (19) as…”

Section: A Steady State Probabilitymentioning

confidence: 99%

“…where E is given in (30), and π in (19). Remark2: For deriving the ABER expressions of the R-D and S-R link, we have taken into account the threshold requirement for non-incremental DDM relaying.…”

Section: ) Aber Analysis Of S-r Kmentioning

confidence: 99%

See 2 more Smart Citations

Priority-Based Max Link Selection for Double Differential Modulation-Based Buffer-Aided Relaying With Offsets

Shukla,

Bhatnagar,

Song

2023

IEEE Open J. Commun. Soc.

View full text Add to dashboard Cite

In this paper, we consider a decode-and-forward (DF) buffer-aided (BA) multi-relay system using double differential (DD) encoding and decoding for the transmission and reception of data packets. The proposed system does not require carrier frequency offset (CFO) information and channel state information (CSI) at any communicating node. A priority-based max link selection protocol has been adopted to select links based on the buffer status and channel quality. The Markov-chain approach is used for developing the state transition matrix, using which the steady state probability of the system is obtained. The outage probability and average bit error rate (ABER) expressions are derived using the steady-state probability. The proposed setup performance is then compared with the conventional coherent BA system. It is established that the considered setup is affected by a signal-to-noise ratio (SNR) penalty of ≈ 3 dB, which is considerably lower than the well-known 6 dB SNR penalty existing for DD modulation compared to coherent modulation. Also, the proposed setup outcompetes the coherent max-link approach in the presence of a CFO.INDEX TERMS Average bit error rate (ABER), buffer-aided cooperative system, decode-and-forward (DF), double-differential modulation, Markov chain (MC), priority-based max-link selection.

show abstract

Section: A Literature Reviewmentioning

confidence: 99%

“…, and b is the column matrix with dimension Z and all its entries are equal to unity. The outage probability of the proposed system can be evaluated with the help of (19) as…”

Section: A Steady State Probabilitymentioning

confidence: 99%

See 1 more Smart Citation

Priority-Based Max Link Selection for Double Differential Modulation-Based Buffer-Aided Relaying With Offsets

Shukla,

Bhatnagar,

Song

2023

IEEE Open J. Commun. Soc.

View full text Add to dashboard Cite

show abstract

“…e.g. [30][31][32][33][34]. We also make the following assumptions: (i) each output symbol takes one time slot to be generated by the encoder; (ii) the output symbol is immediately received and processed by the decoder once it is generated; and (iii) the decoder can recover as many input symbols as possible in one time slot.…”

Section: A Partial Decode-and-forward Relayingmentioning

confidence: 99%

Delay-Efficient and Reliable Data Relaying in Ultra Dense Networks using Rateless Codes

Shang

Hashemi

Kim

et al. 2020

GLOBECOM 2020 - 2020 IEEE Global Communications Conference

View full text Add to dashboard Cite

We investigate the problem of delay-efficient and reliable data delivery in ultra-dense networks (UDNs) that constitute macro base stations (MBSs), small base stations (SBSs), and mobile users. Considering a two-hop data delivery system, we propose a partial decode-and-forward (PDF) relaying strategy together with a simple and intuitive amicable encoding scheme for rateless codes to significantly improve user experience in terms of end-to-end delay. Simulation results verify that our amicable encoding scheme is efficient in improving the intermediate performance of rateless codes. It also verifies that our proposed PDF significantly improves the performance of the decode-and-forward (DF) strategy, and that PDF is much more robust against channel degradation. Overall, the proposed strategy and encoding scheme are efficient towards delay-sensitive data delivery in the UDN scenarios.

show abstract

“…Properties of link rate over domain set, i.e. R e i (α w ): We have already defined the link rate of link i, over the domain set U e (α w ) in (21). The next lemma addresses two properties of these rates.…”

Section: Performance Evaluationmentioning

confidence: 99%

Framework for Discrete Rate Transmission in Buffer-Aided Underlay CRN With Direct Path

Kumar

Prakriya

2019

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

In this paper, a buffered decode and forward (DF) relay based three-node underlay cooperative cognitive relay network (CRN) is considered with a direct path to the destination. The source and the relay use multiple rates, and joint rate and link selection is performed to maximize throughput. Optimum link and rate selection rules are evolved that ensure buffer stability, and expressions are derived for the throughput assuming peak power and peak interference constraints on the transmit power of the secondary nodes. The expressions are written in a manner that yields useful insights on buffer stability and role of the direct link on performance. A scheme in which the direct link signal is combined with the relayed signal is also considered, and it is demonstrated that it offers additional improvement in performance only in some scenarios. Computer simulations have been presented to verify the accuracy of derived expressions. 2 powers, relays are often needed in the secondary network to increase range and reliability [3] [4].Although they incur a loss in performance as compared to full-duplex relays [5], half-duplex relays are preferred in many situations because of their simplicity. One option to overcome the loss due to half-duplex relays is to utilize rate selection, which requires channel knowledge at the transmitter [6]. In addition, when the direct link between the source and the destination is not shadowed, combining the direct and relayed signals improves performance and harnesses diversity gain in cooperative links. Yet another option to harness diversity gain is to use link selection, which requires the incorporation of a data buffer at the relay [7], [8]. Use of data buffers in relays provides some degree of freedom in scheduling links degraded by fading, and increases throughput. For this reason, buffer-aided relaying has been investigated in different scenarios extensively (relay-selection [9], [10], multi-hop [11], [12], two-way relaying [13], [14], MIMO systems [15], energy harvesting [16], physical layer security [17], [18], NOMA [19], [20], full-duplex relays [21], [22] and CRN [23], [24] etc.). Analysis of performance of buffered relays in underlay CRN has been carried out for half and full-duplex relays in [25], [26] and [27] respectively. Motivation and ContributionsDue to the interference constraints, the link signal to noise ratios (SNRs) in underlay cognitive radio network (CRN) have large variance. For this reason, use of a buffer-aided relay with link adaptation is appealing in CRN [27] [28]- [30]. For the same reason, use of rate selection is well motivated in CRN, and we investigate this aspect here. As noted already, due to power constraints, the nodes in underlay networks are relatively close to each other for acceptable quality of service (QoS). Taking the direct channel into consideration is therefore important in underlay CRNs. In this work, we consider the direct channel, and perform joint rate and link selection with buffered relays in a two-hop underlay cognitive network. The majo...

show abstract

On Buffer-Aided Relaying for the Two-Hop Full Duplex Relay Channel with Self-Interference

Cited by 4 publications

References 32 publications

Priority-Based Max Link Selection for Double Differential Modulation-Based Buffer-Aided Relaying With Offsets

Priority-Based Max Link Selection for Double Differential Modulation-Based Buffer-Aided Relaying With Offsets

Delay-Efficient and Reliable Data Relaying in Ultra Dense Networks using Rateless Codes

Framework for Discrete Rate Transmission in Buffer-Aided Underlay CRN With Direct Path

Contact Info

Product

Resources

About