Femtocell (small cell) Research
The CWiND team is a world leading academic research group in femtocell (or small cell) research. It is one of the three groups in the world whose work in femtocell is most widely cited. CWiND members did some pioneering work on OFDMA femtocell simulation, interference avoidance, access control methods, self-organisation and mobility management. He and his colleagues were awarded the first EPSRC-funded project on femtocells (also possibly the earliest research council funded femtocell project in Europe), authored the first technical book on femtocells: “Femtocells – Technologies and Deployment” (Wiley, Jan. 2010) that has attracted over 20 citations so far  and the first two OFDMA femtocell papers (both attracted > 20 citations) .
They also published one of the most widely cited papers on femtocells (> 50 citations so far) – "OFDMA femtocells: A roadmap on interference avoidance" (IEEE Communications Magazine, Sept. 2009) . Prof. Zhang and his colleagues have 7 femtocell publications that have attracted over 10 citations so far -. In the last few years, CWiND researchers have also carried out a great deal of studies in heterogeneous LTE access networks that comprise of macrocells, microcells, femtocells and relays, e.g.,  .