Research Article
Maximizing Downlink Bandwidth Allocation Method Based on SVC in Mobile WiMAX Networks for Generic Broadband Services
Algorithm 1
Downlink bandwidth allocation method for different traffic profiles.
| Downlink Bandwidth Allocation Method (DBAM) | | IF call traffic = UGS or ERT-VR traffic | | Calculate bandwidth according to sustained rate. | | Allocate bandwidth. | | IF call traffic = RT-VR traffic | | IF call traffic = unicast | | Calculate the bandwidth by leaky bucket algorithm and downlink adaptive adjustment. | | Allocate bandwidth. | | ELSE IF call traffic = multicast | | IF user burst profile = 64-QAM | | According the burst profile assigns MCID, and the SS can access base layer and two enhancement layers. | | ELSE IF user burst profile = 16-QAM | | According the burst profile assigns MCID, and the SS can access base layer and one enhancement layer. | | ELSE IF user burst profile = QPSK | | According the burst profile assigns MCID, and the SS can only access base layer. | | IF call traffic = NRT-VR traffic | | The bandwidth allocated to NRT-VR based on minimum required rate | | IF call traffic = BE traffic | | IF excess bandwidth = True | | Allocate bandwidth. |
|
