Abstract: In our present article the concentration is given to the superconducting behaviour of CNTs. The superconductivity of a material depends on transition temperature Tc. the impact of coulomb interaction is also taken into account. A theory have been developed with resistivity and coherence length from the earlier experimental curve between transition temperature and resistivity for a single wall nanotube.The curvature of CNTs leads to the creation of new electron –phonon interaction can introduce superconductivity. In this part the resistivity of carbon nanotube has been derived theoretically with relaxation time and Fermi velocity.

[1]. L.X.Benedict,V.H.Crespy.S.G.Louie, and M.L. Cohen, Phys.Rev.B 52, 14935(1995).
[2]. M.Tinkham, introduction to superconductivity, Dover Publications Inc.Mineola. NY(2004).
[3]. M.Kociak, A.Y.Kasumov.S.Gueron.B.Reulet.L.I.Khodos,Y.B.Gorbatov, V.T.Volkov.L.Vaccarini, and H.Bouchiat, Phys.Rev.Lett.86.2416(2001).
[4]. Z.K.Tang.L.Zhang,N. Wang, X.X.Zhng. G.H. Wen, G.D.LiJ.N.Wang. C.T. chan, and P.sheng. science 292,2462 (2001).

Abstract: In Wireless/Mobile networks various kinds of encoding schemes were used for transmission of data over a bandwidth. The desired quality and generated traffic varies with the requirement with this bandwidth. A generic video telephony may require more than 40 kbps whereas a low motion video telephony may require about 25 kbps for data transmission. From the designing point of view these requirements demands for an alternative resource planning, especially for bandwidth allocation in wireless networks. In wireless network where bandwidth is a scare resource, the system may need to block incoming user if all of the bandwidth has been used to provide highest quality of service to existing users. However this bandwidth resource planning may be unacceptable for larger application.

[1]. S. Sen, J. Jawanda, K. Basu, and S. Das, "Quality-of Service Degradation Strategies in Multimedia Wireless Network," Proc.IEEE Vehicular Technology Conf., vol. 3, pp. 1884-1888, May 1998.
[2]. S. Singh, "Quality of Service Guarantees in Mobile Computing," Computer Comm., no. 19, pp. 359-371, 1996.
[3]. M.R. Sherif, I.W. Habib, M.N. Nagshineh, and P.K. Kermani,"Adaptive Allocation of Resources and Call Admission Control for Wireless ATM Using Generic Algorithm," IEEE J. Selected Areas in Comm., vol. 18, no. 2, pp. 268 -282, Feb. 2000.
[4]. T. Kwon, Y. Choi, C. Bisdikian, and M. Naghshineh, "Call Admission Control for Adaptive Multimedia in Wireless/Mobile Network," Proc. First ACM Int'l Workshop Wireless Mobile Multimedia, pp. 111-116, Oct. 1998.
[5]. S. Choi and K.G. Shin, "Location/Mobility-Dependent Bandwidth Adaptation in QoS-Sensitive Cellular Networks," Proc. IEEE Vehicular Technology Conf., vol. 3, pp. 1593-1597, 2001.