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An advanced ubiquitous healthcare monitoring system is proposed with the aid of wireless sensor network based on the IEEE 802.15.4 standard relay sensor nodes. In this work, wearable healthcare devices are used to measure the human body vital signs, while relay sensor nodes are installed at the room's ceiling to transfer the patient's vital signs to the desktop or mobile. Our proposed architecture had utilized the advantages of wireless sensor network where stationary relay sensor nodes installed at the ceiling manage to transfer an amount of vital signs in real time to the server PC through the connected gateway by concerning the signals traffic problem in mind. Therefore, the proposed system had deal with the mobility and transmission reliability issues faced by the healthcare system. Old-fashionable healthcare system that consumes a lot of power during transmission had been replaced with low power consumption relay sensor nodes with wider communication zone available.