2. WIRELESS WORLD SALEH AL-ABBAS 960394

3. OUTLINE INTRODUCTION. WIRELESS TECHNOLOGIES - Wi-Fi - WiMAX BASIC FUNCTION. EVALUATION CRITERIA. ALTERNATIVE SOLUTIONS. STUDY CASE. CONCLUSION.

4. INTRODUCTION NEED OF NETWORKS. WIRED OR WIRELESS WORLD? IS IT FUTURE TECHNOLOGY? CENTRINO.

5. WIRELESS TECHNOLOGIES WLAN Technologies TO SHARE RESOURCES BETWEEN 2+ NODES. PROVIDES SERVICES. (INTERNET BROWSING) SUPPORT STREAMING TECHNOLOGIES. (VIDEO STREAMING) Wi-Fi and WiMAX

6. Wi-Fi WIRELESS FIDELITY. IEEE 802.11a STANDARD COVERS 100 METERS FROM ACCESS POINT. COST RANGE $150 - $250.

7. Enhanced Wi-Fi IEEE 802.11g STANDARD. COVERS UP TO 500 METERS FROM ACCESS POINT. COST RANGE $350 - $600.

8. Wi-Fi 100 m 500 m

9. WiMAX WORLDWIDE INTEROPERABILITY FOR MICROWAVE ACCESS. IEEE 802.16 STANDARD COVERS 30 MILES (48 KMs) FROM BASE STATION. (Debatable) RANGE 10 KM FOR CASE STUDY. COST RANGE $10,000 - $20,000

10. WiMAX 10 - 48 km

11. Basic Function ESTABLISH COMMUNICATION PROVIDE CONNECTION HOW? WHY? FUNCTION Nature, “Service” USE WIRELESS TECHNOLOGY

12. ALTERNATIVES USE STANDARD Wi-Fi ONLY. ENHANCED Wi-Fi ONLY. WiMax ONLY. ANY COMBINATION. (Complex)

13. EVALUATION CRITERIA COST RANGE AREA/COST RATIO MOBILITY

14. EVALUATION MATRIX A.COSTB. RANGE C.AREA/COST RATIO D.MOBILITY 1.Minor preference 2.Medium preference 3.Major preference A/BC-2A-2 B/CB/D C-2 A B C D BCD Raw scoreAssigned weight A36 B36 C510 D12

15. COST RANGE AREA/COST MOBILITY 21066 1115 1223 3551 TOTAL WEIGHT 3 2 1 48 52 92 Ranking 1.Standard Wi-Fi 2.Enhanced Wi-Fi 3.WiMAX RANKING 1 = POOR 5 = EXCELLENT

16. REQUIREMENT RANGE MUST REACH ACCESS POINT Broken

17. STUDY CASE: GOTHAM CITY PROBLEM. WHY GOTHAM? REPRESENTATIVE OF MOST CITIES IN THE WORLD NON-UNIFORM SHAPE BIG AREA INFORMATION READINESS

18. GOTHAM CITY MAP 20 km 15 km

19. WiMAX COVERING GOTHAM

20. 2 MORE THAN ENOUGH COST = $40,000

21. Wi-Fi COVERING GOTHAM

22. ASSUMING GOTHAM AREA 2/3 15x20 KM 2 RECTANGLE. GOTHAM AREA = 200 KM 2 = 200,000,000 m 2 1 Wi-Fi COVERS 500 2 * pi = 785,398 m 2 # Wi-Fis REQUIRED = 254 ACCESS POINTS. COST = $127,000 WiMAX SAVINGS = $87,000 (68.5%)

23. CONCLUSION WiMax PROVIDES BEST SOLUTION. MANY ADVANTAGES OTHER THAN RANGE AND COST. STC TOWERS CAN SERVE AS BASE STATIONS. (Minimize WiMax cost)