 Mobile 2 is applied. b. What is the signal to interference ratio Mobile 8 Mobile 3 experience for each mobile's signal? C. What is the signal to interference ratio Mobile 7 Mobile 4 if the spreading factor is equal to 64? Base station 20. A source generates a bit stream with a 32 kHz bandwidth. It is transmitted using a Mobile 6 Mobile CDMA system with a bandwidth of 1.25 MHz. What is the spreading gain? Calculate the peak and average Shannon capacity for the following W-CDMA system. Assume the effective bandwidth is 3.84 MHz. (SIR, Signal to interference ratio.) Density 15 dB 12 dB 22. Where is link budget calculation used in mobile communications? What business impli- cations are there? Broadband Telecommunications Technologies and Management 23. What are the policy concerns in allocating 4G spectrum? 24. What are the advantages of 4G standards over 3G? Compare the two systems using the technology-business-policy framework. 25. Should 3G and 4G technologies coexist or is it better that older technologies are phased 26. What are the business drivers in the convergence of standards from 1G to 4G? What were the policy drivers? 27. Why do mobile operators work with manufacturers in developing standards? 28. Most countries have several mobile operators. Considering the high cost of rolling out a wireless mobile network, would a monopoly operator not be more cost effective? 29. How have multimode, multifrequency mobile handsets helped the roll-out of new standards? References [1] http://www.ericsson.com/news/1017515, accessed 23 August 2015. [2] http://morse.colorado.edu/~tlen5510/text/classwebch3.html accessed 26 March 2015. [3] Holt, A. (2010) 802.11 Wireless Networks: Security and Analysis. Springer. [4] Gunn, A. (1992), Wireless LANs. PC Magazine. [5] http://www.totaltele.com/view.aspx?ID=483904, accessed 23 August 2015. [6] GSM Association (2010) GSM World Statistics. gsmworld.com, accessed 5 November 2015. [7] CDMA Development Group (2010) CDG Technology: Quick Market Statistics.. [8] Kudoh, E. (1993) On the C