Deadline Dependent Coding with Concatenated Hybrid ARQ Schemes for Wireless Real-Time Communication
نویسندگان
چکیده
* This work is funded by the national Swedish Real-Time Systems research initiative ARTES (www.artes.uu.se), supported by the Swedish Foundation for Strategic Research. Abstract A protocol for real-time communication over a wireless channel, based on concatenated codes using iterative decoding is proposed. The concept of deadline dependent coding (DDC), previously suggested by the authors, to maximize the probability of delivering the information before a given deadline, is further developed to include concatenated codes. The strategy of DDC is to combine different coding and decoding methods with automatic repeat request (ARQ) in order to fulfill the application requirements. These requirements are formulated as two Quality of Service (QoS) parameters: deadline (tDL) and probability of correct delivery before the deadline (Pd), leading to a probabilistic view of real-time communication. An application can negotiate these QoS parameters with the DDC protocol, thus creating a flexible and reliable scheme.
منابع مشابه
Concatenated Hybrid ARQ - A Flexible Scheme for Wireless Real-Time Communication
The concept of deadline dependent coding (DDC) has previously been suggested by the authors for maximizing the probability of delivering the required information before a given deadline in a wireless communication system. In this paper, these principles are further developed using concatenated codes with iterative decoding, providing a new level of flexibility and robustness for DDC protocols. ...
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