naa a22 4500 510792723 CHVBK 20180411083325.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11277-012-0878-x doi (NATIONALLICENCE)springer-10.1007/s11277-012-0878-x Cross-Layer Design Using Superposition Coding Scheme for Multiuser OFDM Systems [Elektronische Daten] [Kalpana Goyal, Aditya Trivedi] In this paper, a cross-layer design is proposed for downlink of orthogonal frequency division multiplexing systems which uses superposition coding (SC) scheme. SC theorem allows two users to share the same subchannel. Firstly, the subchannel will be allocated to degraded user (who is far away from the base station) and then this subchannel will be allowed to be shared by potential user (who is near to the base station). We also employed a packet dependent scheduling at the medium access control layer which decides the transmission order of packets according to the delay, size and quality of service priority level of packets. The weight of each user can be calculated by summing up the weights of all packets in the queues of that user. We have considered that each user is having multiple heterogeneous traffic queues. Simulation results show that the algorithm proposed in this paper is better than the previously reported algorithm in terms of total throughput and packet delay with the same computational complexity. Springer Science+Business Media New York, 2012 Cross-layer design nationallicence OFDM nationallicence Dynamic resource allocation nationallicence Superposition coding nationallicence Packet scheduling nationallicence Quality of service (QoS) nationallicence Goyal Kalpana Maulana Azad National Institute of Technology, Bhopal, MP, India aut Trivedi Aditya ABV—Indian Institute of Information Technology and Management, Gwalior, MP, India aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/2(2013-07-01), 1339-1352 0929-6212 71:2<1339 2013 71 11277 https://doi.org/10.1007/s11277-012-0878-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0878-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Goyal Kalpana Maulana Azad National Institute of Technology, Bhopal, MP, India aut NATIONALLICENCE 700 1- Trivedi Aditya ABV—Indian Institute of Information Technology and Management, Gwalior, MP, India aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/2(2013-07-01), 1339-1352 0929-6212 71:2<1339 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer