The　wireless　body　area　network　(WBAN)　is　a　branch　of　the　wireless　sensor　network　in　the　healthcare　Internet　of　things　(IoT)　systems.　Wearable　body　sensors　are　placed　on　or　in　the　human　body　and　collect　physiological　information.　The　traditional　sensor-cloud　network　architecture　is　challenging　due　to　the　data　transmission　time　delay　from　sensors　to　remote　cloud　servers,　especially　for　emergency　applications.　In　this　paper,　we　design　an　edge　computing-based　network　architecture　for　the　eHealth　systems.　The　mobile　edge　server　can　decrease　the　time　delay　and　energy　consumption.　The　proposed　network　architecture　can　also　enhance　the　system　quality　of　services　(QoS)　and　quality　of　experience　(QoE).　©　2022　SPIE.