Download Broadband Wireless Communications: 3G, 4G and Wireless LAN by Jiangzhou Wang PDF

By Jiangzhou Wang

ISBN-10: 0306469995

ISBN-13: 9780306469992

ISBN-10: 079237391X

ISBN-13: 9780792373919

The broadband instant communications box is growing to be at an explosive price, prompted by way of a number of significant rising purposes starting from 3G, 4G and instant LAN. Wideband CDMA and CDMA2000 should be used for 3G. OFDM+CDMA may be a sensible choice for 4G, CDMA overlay will almost certainly be used for new-generation broadband instant LAN. For process planners and architects, the projections of swiftly escalating call for for such instant companies current significant demanding situations and assembly those demanding situations would require sustained technical innovation on many fronts. The textual content of this booklet has been built via years of study via the writer and his graduate scholars on the college of Hong Kong. the purpose of this e-book is to supply a R&D standpoint at the box of broadband instant communications by way of describing the new study advancements during this region and in addition by means of picking key instructions within which extra examine is required. As a history, I presume that the reader has a radical figuring out of electronic communications and unfold spectrum/CDMA. The e-book is prepared into thirteen chapters. In bankruptcy 1, a few key necessities of 3G WCDMA are defined and mentioned. those options contain channel coding, cost matching, modulation and spreading, strength keep watch over, cellphone seek, transmit range, soft-handoff, and so son. In bankruptcy 2, the coherent RAKE reception of Wideband CDMA indications with advanced spreading is taken into account. A committed pilot channel, that's break free info channels, is used for the aim of channel estimation.

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Additional resources for Broadband Wireless Communications: 3G, 4G and Wireless LAN

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Assuming that the power of the transmitted signal is where is the chip energy for both data channel and dedicate pilot channel of the k-th user. The complex low-pass equivalent impulse response of a multipath fading channel can be written as where is the number of resolvable propagation paths. For the sake of simple notation, it is assumed that all users have the same number of multipaths. and are the complex fading factor and propagation delay of the l-th path of the k-th user, respectively. Note that can be Rayleigh, Rician or Nakagami distributed, depending on a specific channel model.

E. where is the joint probability density function of multipath fading amplitude. 42) give a complete bit error rate (BER) performance evaluation of the Wideband CDMA system with user dedicated pilot symbols. 42) is generally too complicated to be computed, and the probability density function is unobtainable if the fading in each path is to be chosen arbitrarily. In order to simplify the numerical evaluation, it is assumed that each user has independent but the same fading characteristics. The amplitude fading in each path is assumed to be Nakagami distributed, since the Nakagami distribution is more versatile and more adequate to describe different fading situations.

6] Wideband CDMA II, IEEE Journal on Selected Areas in Communications, vol. 19, no. 1, January 2001. [7] F. Adachi, M. Sawahashi and K. Okawa, “Tree-structured generation of orthogonality spreading codes with different length for forward link of DS-CDMA mobile radio,” Electronics Letters, pp. 27-28, Jan. 1997. [8] E. Dinan and B. Jabbari, “Spreading codes for direct sequence CDMA and Wideband CDMA cellular networks”, IEEE Comm. , pp4854, Sept. 1998. [9] K. Higuchi, M. Sawahashi, and F. E81-B, July 1998.

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Broadband Wireless Communications: 3G, 4G and Wireless LAN by Jiangzhou Wang

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