Potential of the HCCA scheme defined in IEEE802.11e for QoS enabled Industrial Wireless Networks
Srinivasa Rao Karanam, Henning Trsek, Jürgen Jasperneite · 2006
The new draft amendment IEEE 802.11e [1] introduces an improved medium access mechanism, called HCF Controlled Channel Access (HCCA), for deterministic real-time traffic. In this paper the performance of the HCCA is evaluated in an industrial automation network with real-time requirements. Thus a simulation model of the HCCA has been implemented for the network simulator OPNET [2] and the simulation results were compared with the EDCA in terms of latency in various scenarios.