Ageing population has been on rise around the globe. This can be attributed to availability of better healthcare resources; however, the rapid growth in elderly population which will constitute 16 of world's population by 2050, is likely to affect the overall healthcare infrastructure with increasing treatment costs and declining efficiency. In such a scenario, there is need of a healthcare system which can provide older citizens with improved care at reduced costs, ubiquitous and remote monitoring facilities in a residential environment; thus, allowing them to move about freely and independently without impeding their daily activities. Such a system can be developed using Wireless Body Area Networks(WBANs); thanks to the availability of miniaturized wearable sensors. However, currently the WBANs face challenges such as optimization of transmit power, security, interoperability, coexistence and last but most important amongst all is reliability. While the conventional studies employ relay nodes and network coding techniques to improve reliability, this paper is an initial study to prove that improvement in communication reliability can be achieved by exploiting spatial diversity for on-body communication in terms of coordinator. Also, the sinks are strategically placed on the body so that sensor nodes will always remain within half-meter range from at least one of them; thereby, reducing the outage probability. © 2018 IEEE.