@conference{Louta20124909,

title = {Design of an effective QoS-aware mapping scheme using persistent allocation probing},

author = { M. Louta and P. Sarigiannidis and P. Nicopolitidis and G. Papadimitriou and M. Obaidat},

doi = {10.1109/ICC.2012.6364291},

year  = {2012},

date = {2012-01-01},

journal = {IEEE International Conference on Communications},

pages = {4909-4913},

abstract = {Mobile Worldwide Interoperability for Microwave Access (WiMAX) constitutes an attractive trademark for supporting wireless access to Intranets and the Internet. Scheduling and mapping processes are of paramount importance since they dramatically affect the network performance. This work endeavors to provide a robust mapping scheme for the downlink sub-frame with respect to various Quality of Service (QoS) constraints. Each downlink request creates rectangular regions, called Horizons, and the mapping technique applies a persistent probing of the Horizons recorded. The evaluation experiments conducted indicate that the scheme designed beneficially affects the system performance. © 2012 IEEE.},

keywords = {IEEE 802.16, mapping, OFDMA, QoS, WiMAX},

pubstate = {published},

tppubtype = {conference}

}

@conference{Lagkas2011185,

title = {Load dependent resource allocation in cooperative multiservice wireless networks: Throughput and delay analysis},

author = { T. Lagkas and D.G. Stratogiannis and G.I. Tsiropoulos and P. Sarigiannidis and M. Louta},

url = {https://www.researchgate.net/publication/221505003_Load_dependent_resource_allocation_in_cooperative_multiservice_wireless_networks_Throughput_and_delay_analysis},

doi = {10.1109/ISCC.2011.5983838},

year  = {2011},

date = {2011-01-01},

journal = {Proceedings - IEEE Symposium on Computers and Communications},

pages = {185-190},

abstract = {Cooperative wireless networks supporting multiple services necessitate the application of a robust bandwidth allocation policy to ensure Quality of Service (QoS) provision to different applications. In this work, a load dependent bandwidth allocation technique is presented considering traffic priority and buffer load in the relay nodes of a cooperative communication network. An analytical approach for bandwidth sharing is provided along with a delay analysis, verifying that the proposed scheme can efficiently provide traffic differentiation, satisfying, also, the QoS requirements in terms of bandwidth, packet transmission rate and delay. The results obtained by the analysis are validated via simulations, confirming the improved network performance in terms of throughput and delay. © 2011 IEEE.},

keywords = {Buffer load, Cooperative wireless network, delay, MAC, QoS, Simulation},

pubstate = {published},

tppubtype = {conference}

}

@conference{Sarigiannidis20101243,

title = {Towards a QoS-aware IEEE 802.16 downlink sub-frame mapping scheme},

author = { P.G. Sarigiannidis and M. Louta and D.G. Stratogiannis and G.I. Tsiropoulos},

url = {https://www.researchgate.net/publication/233833066_Towards_a_QoS-Aware_IEEE_80216_downlink_sub-frame_mapping_scheme},

doi = {10.1109/GLOCOMW.2010.5700136},

year  = {2010},

date = {2010-01-01},

journal = {2010 IEEE Globecom Workshops, GC'10},

pages = {1243-1247},

abstract = {IEEE 802.16 (WiMAX) is considered as one of the most promising wireless access technologies supporting high-capacity and long-distance communications as well as user mobility. A problem that should be addressed in the context of multi-access communications is the efficient accommodation of traffic requests to the downlink subframe. The allocation operation in downlink sub-frame is not standardized, while only restrictions on the usage of downlink sub-frame's bandwidth are defined. The most noticeable restriction is the rectangular restriction, requiring all downlink allocations to be mapped in a two-dimensions rectangular shaping. This study is a first step towards defining a QoS-aware mapping scheme, prioritizing traffic requests in accordance with the strict delay requirements they pose. The mapping scheme applies horizon scheduling, permitting bursts to be scheduled efficiently and in a simple way, following the horizons as pilots. The QoS-aware mapping scheme is evaluated by means of simulation experiments, which indicate that the proposed scheme operates effectively and efficiently, by reducing the number of unserviced users and traffic requests, and the portion of the dropped real-time traffic. ©2010 IEEE.},

keywords = {Downlink mapping, IEEE 802.16, OFDMA, QoS, Simulation},

pubstate = {published},

tppubtype = {conference}

}