Research Article
Simulation of 802.21 Handovers Using ns-2
Table 1
Supported and unsupported features in ns-2 WiMAX module.
| Available features | Features not implemented |
| (i) Wireless MAN-OFDM physical layer with configurable modulation | (i) Wireless MAN-OFDMA | (ii) Time Division duplexing (TDD) | (ii) Frequency Division duplexing (FDD) | (iii) Management messages to execute network entry (without authentication) | (iii) (ARQ) Automatic Repeat Request | (iv) Default scheduler providing round robin uplink allocation to registered Mobile Stations (MSs) according to bandwidth requested | (iv) Service Flow and QoS scheduling | (v) IEEE 802.16e extensions to support scanning and handovers | (v) Periodic ranging and power adjustments | (vi) Fragmentation and reassembly of frames | (vi) Packing | | (vii) Error Correction |
|
|