Wavelength Dimensioning of Optical Transport Networks Over Nongeosychronous Satellite Constellations

Liying Tan; Qinglong Yang; Jing Ma; Shiqi Jiang

doi:10.1364/JOCN.2.000166

Journal of Optical Communications and Networking
Vol. 2,
Issue 4,
pp. 166-174
(2010)
•https://doi.org/10.1364/JOCN.2.000166

Wavelength Dimensioning of Optical Transport Networks Over Nongeosychronous Satellite Constellations

Liying Tan, Qinglong Yang, Jing Ma, and Shiqi Jiang

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Liying Tan, Qinglong Yang, Jing Ma, and Shiqi Jiang, "Wavelength Dimensioning of Optical Transport Networks Over Nongeosychronous Satellite Constellations," J. Opt. Commun. Netw. 2, 166-174 (2010)

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Abstract

Massive data traffic demand leads to the proposal of satellite constellation networks providing broadband communications for users. The key technology to satisfy the high capacity requirement of future communications between satellites is the optical intersatellite link (ISL). Wavelength-routed optical transport networks over nongeosychronous satellite constellations (WROTNS) show the most promising future, since the networking by means of wavelength division multiplexing (WDM) ISLs with wavelength routing can not only efficiently utilize the optical amplifier bandwidth on board the satellite but also simplify routing decisions and minimize processing delays on board. In the paper we consider that the physical ISL topologies of the WROTNS are the arbitrarily connected networks. Based on the first satellite constellation with the proposal to include WDM ISLs and wavelength routing, its time-variant optical ISL topology is analyzed, and then a large number of randomly generated connected networks with distinct topologies are investigated to estimate the bounds of wavelength requirements. The results show that wavelength requirements of the WROTNS are determined by percentage of active terminals, maximum admissible ISLs hops, and the number of optical ISL terminals on board, and they are also time dependent. The topologically regular WROTNS are studied as well. These works are helpful to evaluate the design of constellation networking.

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Parameters	Value
Orbit inclination	55°
Orbital altitude	$1200 km$
Eccentricity	0
Orbit period	$6565 s$
Number of orbits	10
Number of satellites per orbit	12
Number of ISL terminals per satellite	4
Intraorbit ISL distance	$3922 km$
Interorbit ISL distance	$⩽ 4909 km$

α	${N_{hops}}_{\max}$	$\bar{β}$	$β_{\min}$	$β_{\max}$	${\bar{N}}_{λ}$	$N_{λ \min}$	$N_{λ \max}$
0.7	1	0.024	0.024	0.024	1	1	1
	2	0.066	0.062	0.068	3	2	4
	3	0.133	0.117	0.141	10	8	14
	4	0.227	0.191	0.249	27	18	34
	5	0.348	0.286	0.391	66	52	96
	6	0.489	0.408	0.564	141	103	225
0.8	1	0.027	0.027	0.027	1	1	1
	2	0.081	0.077	0.084	4	2	4
	3	0.173	0.158	0.184	12	9	14
	4	0.301	0.268	0.331	33	28	41
	5	0.460	0.407	0.512	82	69	106
	6	0.636	0.566	0.698	175	134	245
0.9	1	0.030	0.030	0.030	1	1	1
	2	0.098	0.093	0.101	4	3	5
	3	0.217	0.201	0.234	14	11	16
	4	0.384	0.348	0.424	40	34	45
	5	0.584	0.515	0.648	97	83	116
	6	0.784	0.681	0.852	195	159	274
1.0	1	0.034	0.034	0.034	1	1	1
	2	0.111	0.105	0.116	4	3	5
	3	0.249	0.228	0.267	15	12	18
	4	0.437	0.395	0.482	44	39	51
	5	0.656	0.597	0.726	107	90	137
	6	0.855	0.787	0.916	197	165	250

${N_{hops}}_{\max}$	α	$\bar{H}$	β	$N_{λ}$
1	1.0	1	0.0336	1
2	1.0	1.67	0.1008	4
3	1.0	2.33	0.2017	14
4	1.0	3.00	0.3361	33
5	1.0	3.67	0.5042	71
6	1.0	4.31	0.6975	141
7	1.0	4.75	0.8319	238
8	1.0	5.10	0.9328	325

Parameters	Value
Orbit inclination	55°
Orbital altitude	$1200 km$
Eccentricity	0
Orbit period	$6565 s$
Number of orbits	10
Number of satellites per orbit	12
Number of ISL terminals per satellite	4
Intraorbit ISL distance	$3922 km$
Interorbit ISL distance	$⩽ 4909 km$

α	${N_{hops}}_{\max}$	$\bar{β}$	$β_{\min}$	$β_{\max}$	${\bar{N}}_{λ}$	$N_{λ \min}$	$N_{λ \max}$
0.7	1	0.024	0.024	0.024	1	1	1
	2	0.066	0.062	0.068	3	2	4
	3	0.133	0.117	0.141	10	8	14
	4	0.227	0.191	0.249	27	18	34
	5	0.348	0.286	0.391	66	52	96
	6	0.489	0.408	0.564	141	103	225
0.8	1	0.027	0.027	0.027	1	1	1
	2	0.081	0.077	0.084	4	2	4
	3	0.173	0.158	0.184	12	9	14
	4	0.301	0.268	0.331	33	28	41
	5	0.460	0.407	0.512	82	69	106
	6	0.636	0.566	0.698	175	134	245
0.9	1	0.030	0.030	0.030	1	1	1
	2	0.098	0.093	0.101	4	3	5
	3	0.217	0.201	0.234	14	11	16
	4	0.384	0.348	0.424	40	34	45
	5	0.584	0.515	0.648	97	83	116
	6	0.784	0.681	0.852	195	159	274
1.0	1	0.034	0.034	0.034	1	1	1
	2	0.111	0.105	0.116	4	3	5
	3	0.249	0.228	0.267	15	12	18
	4	0.437	0.395	0.482	44	39	51
	5	0.656	0.597	0.726	107	90	137
	6	0.855	0.787	0.916	197	165	250

Abstract

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Figures (11)

Tables (3)

Equations (3)

Journal of Optical Communications and Networking