Joint Cross-Layer Design for Wireless QoS Content Delivery
Author(s) -
Jie Chen,
Tiejun Lv,
Haitao Zheng
Publication year - 2005
Publication title -
eurasip journal on advances in signal processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.317
H-Index - 88
eISSN - 1687-6180
pISSN - 1687-6172
DOI - 10.1155/asp.2005.167
Subject(s) - computer science , computer network , quality of service , wireless network , wireless , physical layer , base station , network packet , mobile qos , orthogonal frequency division multiplexing , channel (broadcasting) , telecommunications , service (business) , service provider , economy , economics
In this paper, we propose a joint cross-layer design for wireless quality-of-service (QoS) content delivery. Central to our proposed cross-layer design is the concept of adaptation. Adaptation represents the ability to adjust protocol stacks and applications to respond to channel variations. We focus our cross-layer design especially on the application, media access control (MAC), and physical layers. The network is designed based on our proposed fast frequency-hopping orthogonal frequency division multiplex (OFDM) technique. We also propose a QoS-awareness scheduler and a power adaptation transmission scheme operating at both the base station and mobile sides. The proposed MAC scheduler coordinates the transmissions of an IP base station and mobile nodes. The scheduler also selects appropriate transmission formats and packet priorities for individual users based on current channel conditions and the users' QoS requirements. The test results show that our cross-layer design provides an excellent framework for wireless QoS content delivery.
Open Access