A software WiMAX medium access control layer using massively multithreaded processors
by M. Chetlur,
U. Devi,
P. Dutta,
P. Gupta,
L. Chen,
Z. Zhu,
S. Kalvanaraman,
and Y. Lin
This paper presents a multithreaded software implementation of the
Worldwide Interoperability for Microwave Access (WiMAX™)
medium access control (MAC) layer and its performance results on
massively multithreaded (MMT) systems. The primary design goals of
the implementation are to support the high WiMAX data rates,
seamlessly scale with the number of available hardware threads, and
provide per-flow guaranteed services. Our experimental results
demonstrate that multithreading can be exploited to meet the high
data rates of WiMAX and thus validate the IBM wire-speed processor
MMT chip as a suitable platform for building WiMAX network
appliances. The implementation consists of separate threads in the
data and control planes, and thread coordination through concurrent
data structures to enable multithreading in both the uplink and
downlink data paths.
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