دانلود مقاله ترجمه شده تجمع داده و مسیریابی های مستقل از ساختار، در سیستم اطلاعات ترافیک(SMART)

In a VANET (Vehicular Ad-Hoc Network) environment, it is highly probable that multiple nodes detect and  report common events. Hence, elimination of redundant messages can help in efficient bandwidth usage. Data aggregation has also been identified as another potential tool to address broad cast storm in VANETs. Though many aggregation and in-network filtering schemes have been proposed, few studies have been done to combine the two approaches ina structured fashion in order to reap the full benefits

In this work, we have shown how our proposed SMART protocol utilizes the data aggregation tool in conjunction with message fragmentation, to address the prevailing challenge of vehicular networks—efficient bandwidth usage. The data is broken down into fragments and subsequently analyzed, thus resulting in the elimination of redundant data than simply suppressing the transmission of duplicate data. The data received at every node is compared, analysed and stored into a well- organized data structure for faster and efficient look-up ,thus transforming the network into a multi- level filtering system. Our SMART protocol is an efficient and scalable data aggregation scheme that achieves in formation dissemination without incurring any overhead of constructing a structure. As a proof of concept, we have shown that the SMART protocol improves efficiency in VANET communication by restricting the transmission of 75–80% redundant data

Contents

1. Introduction

2. Related work

3. Data aggregation and message structure

4. Data structure for message storage

5. Smart protocol’s data aggregation algorithm

6. SMART information dissemination

7. Architecture analysis

8. Conclusions and future work