Research Publications

WHISPER: A Location Privacy-Preserving Scheme Using Transmission Range Changing for Internet of Vehicles

Internet of Vehicles (IoV) has the potential to enhance road-safety with environment sensing features provided by embedded devices and sensors. This benignant feature also raises privacy issues as vehicles announce their fine-grained whereabouts mainly for safety requirements, adversaries can leverage this to track and identify users. Various privacy-preserving schemes have been designed and evaluated, for example, mix-zone, encryption, group forming, and silent-period-based techniques. However, they all suffer inherent limitations. In this paper, we review these limitations and propose WHISPER, a safety-aware location privacy-preserving scheme that adjusts the transmission range of vehicles in order to prevent continuous location monitoring. We detail the set of protocols used by WHISPER, then we compare it against other privacy-preserving schemes. The results show that WHISPER outperformed the other schemes by providing better location privacy levels while still fulfilling road-safety requirements.

https://www.mdpi.com/1424-8220/21/7/2443

Messaoud Babaghayou

PhD in computer science (Location Privacy in IoV). PhD student (Energy Efficiency in Mobile Edge Computing) at Université Amar Telidji Laghouat.

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Kadri, C.B., Guerroudj, A., Hamlat, A. et al. Statistical analysis of remote sensing eco-environmental techniques under land use and land cover constraints: a case study of Blida Province, Algeria. Acta Geophys. (2025). https://doi.org/10.1007/s11600-025-01673-8 https://link.springer.com/article/10.1007/s11600-025-01673-8

August 2, 2025

The Remote Sensing Ecological Index (RSEI) is widely used to assess environmental quality, yet the influence of weighting methods and land cover types on its outputs remains underexplored. Based on

Hamlat, A., Hadidi, A., & Kadri, C. B. (2025). A GIS-Google Earth Based Approach to Identifying Regions Affected by Rising Groundwater Levels in Algeria. Environmental Claims Journal, 1–30. https://doi.org/10.1080/10406026.2025.2464009

February 14, 2025

The article aims to highlight the rising groundwater level phenomenon in Algeria through a geographic approach that integrates GIS, Google Earth, and social media datasets. This phenomenon has triggered a

Hamlat, A., Errih, M., & Guidoum, A. (2012). Simulation of water resources management scenarios in western Algeria watersheds using WEAP model. Arabian Journal of Geosciences, 6(7), 2225–2236. doi:10.1007/s12517-012-0539-0

November 16, 2024

The question of water constitutes a permanent challenge for the countries of North Africa in general and Algeria in particular. For over 20 years, western Algeria region had significant rainfall deficits

Hamlat, A., Tidjani, A. E.-B., Yebdri, D., Errih, M., & Guidoum, A. (2014). Water quality analysis of reservoirs within Western Algeria catchment areas using water quality index CCME WQI. Journal of Water Supply: Research and Technology—AQUA, 63(4), 311. doi:10.2166/aqua.2013.226

November 16, 2024

The present paper aims at determining the status and trends in water quality at Western Algeria reservoirs. The method consists of the computation of Water Quality Index (WQI) on the

Hamlat, A., Guidoum, A., & Koulala, I. (2017). Status and trends of water quality in the Tafna catchment: a comparative study using water quality indices. Journal of Water Reuse and Desalination, June 2017, 7 (2) 228-245; DOI: 10.2166/wrd.2016.155

November 16, 2024

Water quality indices (WQIs) are necessary for resolving lengthy, multi-parameter, water analysis reports into single digit scores; different WQIs have been developed worldwide which are greatly differing in terms of

Hamlat, A., & Guidoum, A. (2018). Assessment of groundwater quality in a semiarid region of Northwestern Algeria using water quality index (WQI). Applied Water Science, 8(8). doi:10.1007/s13201-018-0863-y

November 16, 2024

The present paper aims at determining the status and trends of groundwater quality of 12 aquifers situated in Northwestern Algeria, especially under conditions of last drought that has affected the

Hamlat, A., Kadri, C.B., Guidoum, A., Bekkaye, H., (2021). Flood hazard areas assessment at a regional scale in M’zi wadi basin, Algeria, Journal of African Earth Sciences, https://doi.org/10.1016/j.jafrearsci.2021.104281.

November 16, 2024

Located in the semi-arid areas of Algeria, M’zi wadi basin experienced severe floods that pose a potent threat to the present day. In order to reduce and mitigate flood damage

Hamlat, A., Kadri, C. B., Sekkoum, M., Guidoum, A., & Remada, A. (2022). Multi-criteria decision-making approach for selecting an alternative wastewater treatment plant site in urban areas of Laghouat (North-Central Algeria). Euro-Mediterranean Journal for Environmental Integration, 7(4), 511–530. https://doi.org/10.1007/s41207-022-00333-3

November 16, 2024

Environmental projects need decision-making that integrates environmental, socio-political, and economic factors. Finding a suitable location for a wastewater treatment plant (WWTP) can be a complex and challenging task for the

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Research Publications

WHISPER: A Location Privacy-Preserving Scheme Using Transmission Range Changing for Internet of Vehicles

Messaoud Babaghayou

Hamlat, A., Hadidi, A., & Kadri, C. B. (2025). A GIS-Google Earth Based Approach to Identifying Regions Affected by Rising Groundwater Levels in Algeria. Environmental Claims Journal, 1–30. https://doi.org/10.1080/10406026.2025.2464009

Hamlat, A., Errih, M., & Guidoum, A. (2012). Simulation of water resources management scenarios in western Algeria watersheds using WEAP model. Arabian Journal of Geosciences, 6(7), 2225–2236. doi:10.1007/s12517-012-0539-0

Hamlat, A., Tidjani, A. E.-B., Yebdri, D., Errih, M., & Guidoum, A. (2014). Water quality analysis of reservoirs within Western Algeria catchment areas using water quality index CCME WQI. Journal of Water Supply: Research and Technology—AQUA, 63(4), 311. doi:10.2166/aqua.2013.226

Hamlat, A., Guidoum, A., & Koulala, I. (2017). Status and trends of water quality in the Tafna catchment: a comparative study using water quality indices. Journal of Water Reuse and Desalination, June 2017, 7 (2) 228-245; DOI: 10.2166/wrd.2016.155

Hamlat, A., & Guidoum, A. (2018). Assessment of groundwater quality in a semiarid region of Northwestern Algeria using water quality index (WQI). Applied Water Science, 8(8). doi:10.1007/s13201-018-0863-y

Hamlat, A., Kadri, C.B., Guidoum, A., Bekkaye, H., (2021). Flood hazard areas assessment at a regional scale in M’zi wadi basin, Algeria, Journal of African Earth Sciences, https://doi.org/10.1016/j.jafrearsci.2021.104281.

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