Channel assignment based coding mechanism for reliable transmission for smart cities

Abstract

The broadband wireless network provides an efficient solution for both data reliability and network congestion to meet the demand of the increasing number of mobile users. However, due to dense deployment of nodes, interference and data dissemination problems occur which result in unreliable packet delivery during data transmission in smart cities. All this creates problem in efficient data transmission. In order to solve this problem, in this work, we propose a novel Code-Encoding and Decoding (C-ED) mechanism for IEEE 802.16 networks that helps to mitigate the problem of data dissemination by using minimal number of channels. The proposed C-ED mechanism provides a reliable packet delivery during multicast transmission. As the smart cities are connected with complex networks, our scheme utilizes the existing channel assignment strategies to assign a minimal number of channels to the network and transmit the data using the proposed C-ED mechanism. To illustrate the effectiveness of the proposed C-ED mechanism, it is evaluated by combining it with the existing channel assignment strategies i.e., clique partitioning and random. The simulation results show that the C-ED mechanism with clique partitioning provides improved quality of service than random channel assignment. The C-ED mechanism is compared with Luby Transform (LT) codes which result in reduced transmission delay and improved throughput for a complex network.