LONG-TERM evolution-advanced (LTE-A) techniques are proposed by the 3rd generation partnership project (3GPP) to provide higher spectrum efficiency and data rate. According to the technical report from 3GPP the downlink and uplink peak data rates are respectively required to achieve Femtocell Access Strategies in Heterogeneous Networks using a Game Theoretical Framework Gbps anMbps in order to fulfill the quality-of-service (QoS) requirement for the user equipment (UE). For achieving these objectives, imposing additional low-power base stations (BSs) into the original networks naturally becomes a feasible solution for increasing the spectrum efficiency and data rate. On the other hand, according to the statistical data in , it Femtocell Access Strategies in Heterogeneous Networks using a Game Theoretical Framework is expected that there will be nearly 90% of data services and 60% of phone calls taken place in indoor environments. Hence, femtocell BSs (fBSs) with the properties of short-range, lowpower, low-cost, and plug-and-play are designed to connect into the end user’s broadband line in order to provide high throughput and QoS for the UEs. Moreover, installation of fBSs can share the traffic load of its coexisting macrocell BSs. For the macrocell/femtocell heterogeneous networks Het- Nets, it has been studied in that co-channel deployment Femtocell Access Strategies in Heterogeneous Networks using a Game Theoretical Framework of frequency spectrum can achieve higher system throughput than independent channel deployment because of spectrum reuse. However, critical challenge associated with femtocell technology is the co-channel interference if the fBSs utilize the same frequency spectrum as the overlay mBSs, especially in the case that fBSs are operated in the closed access mode. Note that the closed and open access modes are two different access methods for the femtocell. The closed access mode only allows specific UEs that possess proper authorization, i.e., subscribers, to access the corresponding fBS. In general, subscribers are the UEs who purchase closed access fBS in order Femtocell Access Strategies in Heterogeneous Networks using a Game Theoretical Framework to improve their own throughput; while the nonsubscribers are prohibited to access the closed accessed fBS. On the other hand, the open access mode provides all the UEs with the permission to connect and access the fBS. One severe problem for this type of HetNets is that the fBS will produce strong interference to those UEs that are situated close by this Fbs but not connect to it. Apparently, this problem tends to occur in closed access mode since those nonsubscribers close to the fBS are not allowed to access it. Note that for the closed access mode, nonsubscribers are defined as the UEs who are not permitted to access the fBS; while subscribers represent those UEs that are authorized and allowed to connect with the fBS.