7) Design a WLAN for 20m80m area. Assume that: - The IEEE 802.11a WLAN technology is used. - The average Fade Margin loss within the area is 60dB. - Each AP has an Omni-directional antenna with transmit and receive gain of 5dBi and 4dBi; respectively. - The receiver sensitivity =92dBm. - The maximum allowed EIRP =36dBm a) Design based on lowest cost. b) Design based on best performance and lowest possible cost. c) For each design: i) Draw APs and the corresponding coverage area on a sketch. ii) Assign an RF channel for each access point and channel numbers to the sketch. iii) Determine the power budget and make sure it complies with the maximum EIRP. iv) Assuming that you have 20 active users in the area, determine the average data rate per user. Assume that the user are uniformly distributed within the area