Abstract
The hardware impairments of transceiver nodes that generate signal distortions degrade the reliability performance of communication systems. This paper investigates the impact of hardware imperfections on the outage performance of hybrid satellite-terrestrial relay systems (HSTRS), where a geosynchronous earth orbit (GEO) satellite transmits its data to the terrestrial destination with the help of decode-and-forward (DF) terrestrial relays. We consider that all network nodes are subjected to hardware impairments and propose a multi-relay selection (MRS) scheme to enhance the outage performance of the HSTRS. The traditional single-relay selection (SRS) scheme is also considered for comparison purposes. We derive closed-form outage probability expressions for both the SRS and MRS schemes. Moreover, an asymptotic outage probability analysis is carried for both the SRS and MRS schemes in the high signal-to-noise-ratio (SNR) region. The simulation results show that the outage performance of the HSTRS can be enhanced under the MRS scheme with a certain level of hardware impairments at the HSTRS. Compared to the condition of ideal hardware, the outage probability of HSTRS increases for both the SRS and MRS schemes if the hardware is not ideal. When the amplify-and-forward (AF) protocol is employed at relays, the outage performance of HSTRS degrades compared to that of DF for both the SRS and MRS schemes.
| Original language | English |
|---|---|
| Article number | 8667459 |
| Pages (from-to) | 35103-35112 |
| Number of pages | 10 |
| Journal | IEEE Access |
| Volume | 7 |
| DOIs | |
| Publication status | Published - Jan 1 2019 |
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Keywords
- Hardware impairments
- hybrid satellite-terrestrial relay systems
- outage probability
- relay selection
ASJC Scopus subject areas
- Computer Science(all)
- Materials Science(all)
- Engineering(all)
Cite this
Impact of Hardware Impairments on Outage Performance of Hybrid Satellite-Terrestrial Relay Systems. / Wu, Hang; Zou, Yulong; Cao, Weifeng; Chen, Zhong; Tsiftsis, Theodoros; Bhatnagar, Manav R.; De Lamare, Rodrigo C.
In: IEEE Access, Vol. 7, 8667459, 01.01.2019, p. 35103-35112.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Impact of Hardware Impairments on Outage Performance of Hybrid Satellite-Terrestrial Relay Systems
AU - Wu, Hang
AU - Zou, Yulong
AU - Cao, Weifeng
AU - Chen, Zhong
AU - Tsiftsis, Theodoros
AU - Bhatnagar, Manav R.
AU - De Lamare, Rodrigo C.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - The hardware impairments of transceiver nodes that generate signal distortions degrade the reliability performance of communication systems. This paper investigates the impact of hardware imperfections on the outage performance of hybrid satellite-terrestrial relay systems (HSTRS), where a geosynchronous earth orbit (GEO) satellite transmits its data to the terrestrial destination with the help of decode-and-forward (DF) terrestrial relays. We consider that all network nodes are subjected to hardware impairments and propose a multi-relay selection (MRS) scheme to enhance the outage performance of the HSTRS. The traditional single-relay selection (SRS) scheme is also considered for comparison purposes. We derive closed-form outage probability expressions for both the SRS and MRS schemes. Moreover, an asymptotic outage probability analysis is carried for both the SRS and MRS schemes in the high signal-to-noise-ratio (SNR) region. The simulation results show that the outage performance of the HSTRS can be enhanced under the MRS scheme with a certain level of hardware impairments at the HSTRS. Compared to the condition of ideal hardware, the outage probability of HSTRS increases for both the SRS and MRS schemes if the hardware is not ideal. When the amplify-and-forward (AF) protocol is employed at relays, the outage performance of HSTRS degrades compared to that of DF for both the SRS and MRS schemes.
AB - The hardware impairments of transceiver nodes that generate signal distortions degrade the reliability performance of communication systems. This paper investigates the impact of hardware imperfections on the outage performance of hybrid satellite-terrestrial relay systems (HSTRS), where a geosynchronous earth orbit (GEO) satellite transmits its data to the terrestrial destination with the help of decode-and-forward (DF) terrestrial relays. We consider that all network nodes are subjected to hardware impairments and propose a multi-relay selection (MRS) scheme to enhance the outage performance of the HSTRS. The traditional single-relay selection (SRS) scheme is also considered for comparison purposes. We derive closed-form outage probability expressions for both the SRS and MRS schemes. Moreover, an asymptotic outage probability analysis is carried for both the SRS and MRS schemes in the high signal-to-noise-ratio (SNR) region. The simulation results show that the outage performance of the HSTRS can be enhanced under the MRS scheme with a certain level of hardware impairments at the HSTRS. Compared to the condition of ideal hardware, the outage probability of HSTRS increases for both the SRS and MRS schemes if the hardware is not ideal. When the amplify-and-forward (AF) protocol is employed at relays, the outage performance of HSTRS degrades compared to that of DF for both the SRS and MRS schemes.
KW - Hardware impairments
KW - hybrid satellite-terrestrial relay systems
KW - outage probability
KW - relay selection
UR - http://www.scopus.com/inward/record.url?scp=85063903609&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85063903609&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2019.2905129
DO - 10.1109/ACCESS.2019.2905129
M3 - Article
AN - SCOPUS:85063903609
VL - 7
SP - 35103
EP - 35112
JO - IEEE Access
JF - IEEE Access
SN - 2169-3536
M1 - 8667459
ER -