CFDP-based two-hop relaying protocol over weather-dependent Ka-band space channel

Yang, Zhihua; Li, Hongbing; Jiao, Jian; Zhang, Qinyu; Wang, Ruhai

doi:10.1109/taes.2014.120110

Cited by 9 publications

(3 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reason is that when SNR is higher, R can receive more PDUs successfully, which enable itself to forward faster, and the reception and transmission of the D-LEC-f CFDP are carried out at the same time, while that of the other are separate. In the low SNR region, the BLER of the D-LEC-f CFDP is little higher than the D-LEC-h CFDP due to the high SI, which can be represented as αP , where P is the normalized transmit power of the satellite and α = 0.1 is the SI cancelation quality parameter [12]. Moreover, it can observe that our D-LEC CFDP scheme always outperform the NCor-HARQ scheme in different SNR regions.…”

Section: Simulation Results and Discussionmentioning

confidence: 85%

“…In addition, two reliable transmission modes are proposed in CFDP, named the deferred and asynchronous modes, where the receiver feeds back the acknowledgement (ACK) or non-ACK (NAK) after receive all the packets of status update in the deferred mode, and sends the NAK according to the predetermined trigger in the asynchronous mode. The authors in [12] proposed a CFDPbased two-hop relaying protocol (CTRP), where the relay satellite immediately forwards the received protocol data unit (PDU) packets in a full-duplex mode, which can significantly reduce the end-to-end delay. Furthermore, CCSDS released the long erasure codes (LEC) specification [13] to perform a packet-level LEC at the transport layer, and the receiver could recover the lost PDUs by utilizing the LEC PDU packets.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Age-Critical Long Erasure Coding-CCSDS File Delivery Protocol for Dual-Hop S-IoT

Huang

Jiao

Wang

et al. 2023

IEEE Internet Things J.

Self Cite

View full text Add to dashboard Cite

The upcoming satellite Internet of Things (S-IoT) can provide status updates relaying for ground user equipment (UE). However, the S-IoT cannot utilize conventional hybrid automatic retransmission request (HARQ) for reliable transmission due to the high bit error rate (BER) and long propagation latency. The consultative committee for space data systems (CCSDS) has proposed the CCSDS file delivery protocol (CFDP) to relieve the long propagation latency, and the CFDP utilizes retransmission to guarantee the reliability. In this paper, we propose two age-critical long erasure coding-CFDP (LEC-CFDP) schemes to realize dual-hop timely status updates in S-IoT via a relay satellite over shadowed Rician (SR) fading channel, where the satellite and destination can select the deferred or asynchronous mode to adjust the number of inserted LEC packets, called D-LEC CFDP and A-LEC CFDP, respectively. Further, the satellite can select half-duplex or full-duplex relay mode, i.e., LEC-h CFDP or LEC-f CFDP to forward packets to the destination. We derive a close-form expression for the peak age of information (PAoI) and an approximation expression for the expected end-to-end delay for the D-LEC-f CFDP scheme. Moreover, we propose an A-LEC-f CFDP scheme to further improve the PAoI, and model it as a partially observable Markov decision process (POMDP) problem, which can be solved by a low complexity Point-based Informed Bound (PIB) algorithm. Simulation results verify the accuracy of the theoretical derivations, and illustrate that the A-LEC-f CFDP scheme can achieve lower end-to-end delay and PAoI in comparison with the existing schemes.Index Terms-Satellite Internet of Things, age of information, long erasure coding, CCSDS file delivery protocol, partially observable Markov decision process I. INTRODUCTIONWith the commercial applications of the fifth generation (5G) mobile communication and the in-depth research of the sixth generation (6G), the satellite Internet of Things (S-IoT), which can provide seamless communication coverage and instant response for a wide geographical area and extreme terrain, has attracted considerable attention [1]. Moreover, with the upcoming applications for S-IoT, higher information freshness becomes an urgent need for many emerging timeliness Manuscript is received xxx, 2022.

show abstract

Section: Simulation Results and Discussionmentioning

confidence: 85%

mentioning

confidence: 99%

Age-Critical Long Erasure Coding-CCSDS File Delivery Protocol for Dual-Hop S-IoT

Huang

Jiao

Wang

et al. 2023

IEEE Internet Things J.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefor the rain attenuation is considered to be the main factor in Ka-band satellite communications [7][8][9]. Rain rate data was measured through OTT Parsivel, which shows the rain rate of about 50 mm/h and attenuation of 10.7, 11.6, and 11.3 dB for 12.…”

Section: Introductionmentioning

confidence: 99%

Data-Aided and Non-Data-Aided SNR Estimators for CPM Signals in Ka-Band Satellite Communications

2017

View full text Add to dashboard Cite

Adaptive coded and modulation (ACM) is an effective measure to resist rain attenuation in Ka-band satellite communications. The accuracy of the estimator for signal-to-noise ratio (SNR) is one of the main factors that affect ACM performance. This paper establishes the channel model of satellite communication in Ka-band and derives and analyzes data-aided (DA) maximum likelihood (ML) and method-of-moments estimators for SNR of continuous phase modulation (CPM) in Ka-band fading channel. Simulations and analysis indicate that the normalized mean square error (NMSE) of the DA ML estimator is closer to the Cramer-Rao bounds (CRB) at low SNR, but the performance worsens with the SNR increases from medium to high values. The M 2 M 4 estimator performs poorly at low SNR and best at medium SNR. When the SNR is low, the performance of the DA ML estimator is better than the M 2 M 4 estimator; however, the two estimators have similar performance when SNR is high. The performances of the two estimators will become increasingly better the greater the lengths of the observation signals become. However, the influence of the signal length will become increasingly smaller as the SNR becomes larger.

show abstract

Network protocol architectures for future deep-space internetworking

Zhao¹,

Zhang²

2018

Sci. China Inf. Sci.

View full text Add to dashboard Cite

CFDP-based two-hop relaying protocol over weather-dependent Ka-band space channel

Cited by 9 publications

References 28 publications

Age-Critical Long Erasure Coding-CCSDS File Delivery Protocol for Dual-Hop S-IoT

Age-Critical Long Erasure Coding-CCSDS File Delivery Protocol for Dual-Hop S-IoT

Data-Aided and Non-Data-Aided SNR Estimators for CPM Signals in Ka-Band Satellite Communications

Network protocol architectures for future deep-space internetworking

Contact Info

Product

Resources

About