Capacity Analysis of Delay-Sensitive Services with Multi-User Packet in Forward Link of TDMA System

In this paper, we analyze the capacity of delay- sensitive services in forward link of TDMA system when multiuser packet (MUP) is used. A new transmission strategy based on two buffers is proposed to meet the stringent quality of service (QoS) requirement. Besides, we employ a throughput optimal scheduler in a constrained delay boundary to achieve a good balance between throughput and latency. The delay boundary in our analysis is defined as the longest time a packet may experience, including waiting time in a buffer and transmission time over the air interface. Our scheduler purely relies on subscribers´ channel condition which has an analogy to maximum C/I. According to the buffer-based transmission and channel condition-oriented scheduler, we develop an analytical model and give the numerical results in the end.