Author :
Alasti, Mehdi ; Neekzad, Behnam ; Hui, Jie ; Vannithamby, Rath
Abstract :
A quality of service framework is a fundamental component of a 4G broadband wireless network for satisfactory service delivery of evolving Internet applications to end users, and managing the network resources. Today´s popular mobile Internet applications, such as voice, gaming, streaming, and social networking services, have diverse traffic characteristics and, consequently, different QoS requirements. A rather flexible QoS framework is highly desirable to be future-proof to deliver the incumbent as well as emerging mobile Internet applications. This article highlights QoS frameworks and features of OFDMA-based 4G technologies - IEEE 802.16e, IEEE 802.16m, and LTE - to support various applications´ QoS requirements. A few advanced QoS features such as new scheduling service (i.e., aGP), quick access, delayed bandwidth request, and priority controlled access in IEEE 802.16m are explained in detail. A brief comparison of the QoS framework of the aforementioned technologies is also provided.
Keywords :
4G mobile communication; Internet; OFDM modulation; WiMax; broadband networks; computer network management; quality of service; resource allocation; scheduling; telecommunication traffic; 4G broadband wireless network; 4G technology; IEEE 802.16e; IEEE 802.16m; LTE network; OFDMA; WiMAX; delayed bandwidth request; gaming; long term evolution; mobile Internet application; network resource management; priority controlled access; quality of service; quick access; satisfactory service delivery; scheduling service; social networking services; streaming; traffic characteristics; voice; IP networks; Quality management; Quality of service; Resource management; Social network services; Telecommunication traffic; Web and internet services; WiMAX; Wireless communication; Wireless networks;
