Channel- and Delay-Aware Scheduling and Packet Dropping for Real Time Traffic over WiMAX Networks

Dziyauddin, Rudzidatul Akmam; Kaleshi, Dritan; Doufexi, Angela

doi:10.1109/vtcfall.2012.6399289

Cited by 3 publications

(1 citation statement)

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“…The use of REM is further investigated regarding the impact of the estimation accuracy of the channel and load parameters have on system efficiency. This is likely to occur for the cases of delay in accessing the instantaneous user's information from REM, for instance, the channel parameter if the user is in high mobility [18]. The effects of load estimation error are only examined for the required loads between 50 to 100 channels.…”

Section: System Efficiency Computation {mentioning

confidence: 99%

Performance analysis of Radio Environment Map accuracy on resource reuse in multi-channel cellular networks

Dziyauddin

Farnham

Sooriyabandara

2014

2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)

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This paper presents a numerical study to quantify the benefits of using Radio Environment Maps (REM) within resource management techniques. To date, there are no REM studies established to benchmark the impact of REM models and their accuracy for inter-cell interference coordination (ICIC) within multi-channel systems, such as based on OFDMA (Orthogonal Frequency Division Multiple Access). We evaluate REM using a reuse partitioning scheme and it is benchmarked against a system without REM where no-reuse partitioning is employed. Results show that the large interior with REM is able to improve the system efficiency at certain load for low exponents. This study is further extended to the effects of REM information accuracy, such as the predictions of path losses, fading variances as well as the load, on the system performance. It is found that the variation in the load estimation by REM has the greatest effect on the system efficiency, and it is significant for high path loss exponent resulting in significant loss of system efficiency. In contrast, the fading variance accuracy has the least impact on the efficiency performance. This research implies that REM is beneficial in improving the cellular system performance, particularly in intercell-interference coordination.

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Section: System Efficiency Computation {mentioning

confidence: 99%