Location_Privacy_for_IoV (Estimation of communication overhead incurred during IT request, ZKP validation, and blockchain logging)

% Random Silent Period Algorithm - Multi-Vehicle Simulation with Overhead Estimation % Author: Abdulhameed Idris % Date: [Insert Date] % -------- Input Parameters -------- num_vehicles = 5; % Number of vehicles T_min = 5; % Min silent period (sec) T_max = 15; % Max silent period (sec) T_total = 60; % Total simulation time (sec) T_sys = 0; % System time % Communication overhead estimates (in bytes) IT_request_size = 100; IT_response_size = 120; blockchain_entry_size = 80; overhead = 0; % Total communication overhead % Initialize vehicle states silent_mode = true(num_vehicles, 1); T_silent = zeros(num_vehicles, 1); T_end_silent = zeros(num_vehicles, 1); % Assign random silent periods for i = 1:num_vehicles R_f = rand(); T_silent(i) = T_min + R_f * (T_max - T_min); T_end_silent(i) = T_sys + T_silent(i); end % -------- Simulation Loop -------- disp('Simulation Start'); while T_sys <= T_total for i = 1:num_vehicles if silent_mode(i) && T_sys >= T_end_silent(i) fprintf('\n[%.2f sec] Vehicle %d: Silent period over (%.2f sec) — requesting IT from blockchain.\n', T_sys, i, T_silent(i)); silent_mode(i) = false; % Simulate blockchain communication fprintf('[%.2f sec] Vehicle %d: IT request sent, waiting for ZKP validation...\n', T_sys, i); pause(0.5); fprintf('[%.2f sec] Vehicle %d: Blockchain validated identity, communication resumed.\n', T_sys, i); % Count communication overhead overhead = overhead + IT_request_size + IT_response_size + blockchain_entry_size; % Reassign new silent period R_f = rand(); T_silent(i) = T_min + R_f * (T_max - T_min); T_end_silent(i) = T_sys + T_silent(i); silent_mode(i) = true; end end T_sys = T_sys + 1; pause(0.1); % Simulate real-time step end % -------- Final Output -------- disp('Simulation End'); fprintf('\nEstimated total communication overhead: %d bytes\n', overhead);