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This study analyses a cognitive radio scenario based on non-persistent carrier sense multiple access (CSMA) and time division multiple access (TDMA) systems sharing a single-channel wireless network. TDMA users are considered as primary users who can access the channel at any time, and non-persistent CSMA users are considered as secondary users who can share the channel when it is free. New expressions for the individual and aggregate throughput performance of this combined system have been developed, and the system performance is evaluated for a variety of proportions of non-persistent CSMA and TDMA traffic levels. Simulation and analytical results are presented and the ways in which both schemes suffer negative effects as a result of the interaction are shown, primarily caused by increased number of collisions arising from the other scheme.
References
-
-
1)
-
K.K. Leung ,
W.A. Massey ,
W. Whitt
.
Traffic models for wireless communication networks.
IEEE Commun. Select. Areas
,
8 ,
1353 -
1364
-
2)
-
K. Pahlavan ,
A.H. Levesque
.
(1995)
Wireless information networks.
-
3)
-
F.A. Haight
.
(1967)
Handbook of the Poisson distribution.
-
4)
-
J.M. Hammersley ,
D.C. Handscomb
.
(1964)
Monte Carlo methods.
-
5)
-
I. Cosovic ,
T. Yamada ,
K. Maeda
.
Improved policy for resource allocation in decentralized dynamic spectrum sharing systems.
IEEE Commun. Lett.
,
9 ,
639 -
641
-
6)
-
Parliamentary Office of Science and Technology: Radio Spectrum Management, 2007, POSTNOTE 292.
-
7)
-
E. Erkip ,
B. Aazhang
.
A comparative study of multiple accessing schemes.
IEEE
,
614 -
619
-
8)
-
A. Shukla ,
A. Alptekin ,
J. Bradford
.
Cognitive radio technology: a study for Ofcom.
-
9)
-
Office of Communication: Spectrum Framework Review: a consultation on Ofcom's views as to how radio spectrum should be managed, 2004.
-
10)
-
J. Mitola ,
G.Q. Maguire
.
Cognitive radio: making software radios more personal.
IEEE Pers. Commun.
,
4 ,
13 -
18
-
11)
-
N. Abramson
.
The throughput of packet broadcasting channels.
IEEE Trans. Commun.
,
1 ,
117 -
127
-
12)
-
Parliamentary Office of Science and Technology: Radio Spectrum Management, 2007, POSTNOTE.
-
13)
-
J.-M. Peha
.
Approaches to spectrum sharing.
IEEE Commun. Mag.
,
2 ,
10 -
12
-
14)
-
B. Fette
.
(2006)
Cognitive radio technology.
-
15)
-
L. Kleinrock ,
F.A. Tobagi
.
Packet switching in radio channels. Part 1 – carrier sense multiple-access modes and their throughput-delay characteristics.
IEEE Trans. Commun.
,
12 ,
1400 -
1416
-
16)
-
M. Hassan ,
R. Jain
.
(2004)
High performance TCP/IP networking.
-
17)
-
I.F. Akyildiz ,
W.-Y. Lee ,
M.C. Vuran ,
S. Mohanty
.
NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey.
Comput. Netw.
,
13 ,
2127 -
2159
-
18)
-
P.A.P. Moran
.
(1984)
An introduction to probability theory.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-com.2009.0430
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