QoS and Channel-Aware Packet Bundling for Capacity Improvement in Cellular Networks

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Executive Summary

The authors study the problem of multiple packets bundling to improve spectral efficiency in cellular networks. The packet size of real-time data, such as VoIP, is often very small. However, the common use of time division multiplexing limits the number of VoIP users supported, because a packet has to wait until it receives a time slot, and if only one small VoIP packet is placed in a time slot, capacity is wasted. Packet bundling can alleviate such a problem by sharing a time slot among multiple users. A recent revision of cdma2000 1xEV-DO introduced the concept of the Multi-User Packet (MUP) in the downlink to overcome limitations on the number of time slots.

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