Multi-Carrier and Spread Spectrum Systems: From OFDM and MC ...

WiMAX 2710Power density in dB−25−32−500 4.7 5.4 9.75 14.75Frequency in MHzFigure 5-43WiMAX RF profile: spectrum mask, 10 MHzTable 5-34WiMAX OFDM certificationsFrequency band Duplex PHY profile Bandwidth MAC profile3400–3600 MHz TDD Prof3 3.5 3.5 MHz profM3 PMPProf3 7 7MHzFDD Prof3 3.5 3.5 MHzProf3 7 7MHz5725–5850 MHz TDD Prof3 10 10 MHz5.3.6.4 WiMAX Certification ProfilesAs mentioned earlier, the WiMAX systems will be introduced first for fixed positionedequipment and later for mobile applications. The certification instance will use the predefinedset of profiles for testing any WiMAX-compliant product and will then deliverthe certification label. The profiles for fixed services (WirelessMAN OFDM) are given inTable 5-34 for both TDD and FDD duplexes. TDD is the preferred WiMAX duplexingscheme.Release-1 mobile WiMAX OFDMA profiles will cover 5, 7, 8.75, and 10 MHz channelbandwidths for licensed spectrum allocations in the 2.3, 2.5, 3.3, and 3.5 GHz frequencybands [33]. The IEEE 802.16e S-OFDMA is designed to be scaled to different channelizationsfrom 1.25 to 20 MHz in order to comply with varied bandwidth requirements.5.3.7 Performance5.3.7.1 Peak Transmission CapacityThe peak data rate achievable for both the OFDM and OFDMA mode depends on theused channel bandwidth, the PHY mode, and the guard time. In Table 5-35 and Table 5-36