aspg-20-4298-1791307621 20261006172701 American Scientific Publishing Group admin@americaspg.com American Scientific Publishing Group International Journal of Wireless and Ad Hoc Communication IJWAC 2692-4056 2026 10 1 Eman Gaber PhD, Department of Electronic Engineering and Communication Technology, Modern Academy for Engineering and Technology, Cairo, Egypt Normal false false false EN-US JA AR-SA DefSemiHidden="false" DefQFormat="false" DefPriority="99" LatentStyleCount="371"> UnhideWhenUsed="true" QFormat="true" Name="heading 2"/> UnhideWhenUsed="true" QFormat="true" Name="heading 3"/> UnhideWhenUsed="true" QFormat="true" Name="heading 4"/> UnhideWhenUsed="true" QFormat="true" Name="heading 5"/> UnhideWhenUsed="true" QFormat="true" Name="heading 6"/> UnhideWhenUsed="true" QFormat="true" Name="heading 7"/> UnhideWhenUsed="true" QFormat="true" Name="heading 8"/> UnhideWhenUsed="true" QFormat="true" Name="heading 9"/> Name="index 1"/> Name="index 2"/> Name="index 3"/> Name="index 4"/> 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6"/> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Cambria",serif; mso-ascii-font-family:Cambria; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Cambria; mso-hansi-theme-font:minor-latin;} With the rapid expansion of the Internet of Things (IoT), reliable and efficient data transmission has become a critical requirement for large-scale heterogeneous deployments. This paper presents a comprehensive simulation-based performance analysis of three widely adopted IoT transport protocols—UDP, CoAP, and MQTT—under Rayleigh fading channel conditions using a MATLAB-based framework. The study evaluates the transmission of 100 and 1000 data packets under three distinct latency regimes: low, medium, and high. Key performance metrics include end-to-end delay, jitter, packet loss ratio, and throughput. A novel Adaptive Exponential Moving Average (EMA) jitter buffer algorithm is proposed, achieving 57–65% jitter reduction across all tested scenarios. Protocol comparison reveals that UDP achieves the lowest average delay (20 ms under low conditions), while MQTT incurs the highest overhead (+20 ms) due to broker relay. Monte Carlo statistical analysis with 500 simulation runs confirms result convergence within 0.5 ms between 100-packet and 1000-packet scales. The findings provide practical design guidelines for IoT protocol selection and establish a reproducible benchmark for evaluating transport-layer behavior in constrained wireless ad hoc networks. 2026 01 08 4298 https://creativecommons.org/licenses/by/4.0/ 10.54216/IJWAC.100101 https://americaspg.com/journal/20/article/4298 https://americaspg.com/storage/11779151148.pdf