Wireless communication

1. When the FCC conducted the original A and B block PCS auction, what were the companies that won the license for Cleveland Ohio? What is the MTA number for Cleveland? How many pops were covered by the license? 2. Who was the winner original high bidder(s) for the D-Block auction for Houston BTA? What was the BTA number? What MTA includes the Houston BTA? 3. If Nextel has a monthly ARPU of $62, what is an estimate of the annual revenue for Nextel 4. What was the Churn for Verizon wireless as of their latest SEC filing? If this figure is a quarterly churn, how many subscribers would Verizon lose next quarter? 5. A typical walkie talkie uses what type of duplex... click for more

wireless communication

(a) Graph the theoretical number of users of a CDMA system with a data rate of 9.6 kbs and 14.4 kbs while varying the Voice activity factors from 10% - 100% (b) Create the Walsh code matrix for a W16. (c) For IS-95, on the forward link, list the Walsh code assigned to the various logical channels (hint: there are 64 Walsh codes)

wireless communication

1. Assume a CDMA system has only 4 walsh codes. If the mobile is assigned W4 and receives a data stream of 11011010, what is the output? 2. what is the c/I for a network using a 7/21 reuse pattern? ( consider only the closest 6 interferers and a propagation exponent of 3.5

Wireless Communication

1. For an urban environment, at 1900MHz, what is the path loss between a base station at 40m height and a mobile at 1.6m height separated by a distance of 5 km? 2. TDMA has 416 frequencies in one of the cellular license bands. If a cellular operator designs a network with a 5/15 reuse pattern, how many frequencies per cell (sector) can be supported? ( ignore control channels)

Network planning, Link Budget, Hata Model

A Potential client has asked you to predict the number of cells necessary to cover 100 square miles. The area the client wished to cover compromises 5 sq miles Urban, 25 sq miles, Suburban and the remainder rural. For urban areas the client can acquire 30 m towers, for Suburban 60 m and for rural 100 m Assume feeder lengths = tower heights, and a mobile height of 2m. For the purpose of this exercise, cell with a radius of less than 1 km are acceptable. Determine the followings 1) Is the hardware uplink or downlink limited? Why? 2) How many square miles does each cell site in each environment cover? Assume that the cells are all edge excited hexagons 3) What is the total number... click for more