Feedback Allocation for OFDMA Systems with Slow Frequency-Domain Scheduling
The authors study the problem of allocating limited feedback resources across multiple users in an orthogonal-frequency-division-multiple-access downlink system with slow frequency-domain scheduling. Many flavors of slow frequency-domain scheduling (e.g., persistent scheduling, semi-persistent scheduling), that adapt user-sub-band assignments on a slower time-scale, are being considered in standards such as 3GPP Long-Term Evolution (LTE). In this paper, they develop a feedback allocation algorithm that operates in conjunction with any arbitrary slow frequency-domain scheduler with the goal of improving the throughput of the system.
Provided by: Institute of Electrical & Electronic Engineers Topic: Mobility Date Added: Dec 2012 Format: PDF